/ˈhaɪ̯dɹə/, /[ˈhaɪ̯dɹə]/, /[ˈhaɪ̯d͡ʒɹə]/

1. 1. (Greek mythology) A mythological serpent with many heads, slain by Hercules as one of his twelve labours.
   2. (astronomy) One of Pluto's moons.
   Hydra
2. (constellation) A spring constellation of the northern sky, said to resemble a serpent. It lies just south of the zodiac and contains the star Alphard.
   1. Hydra
   2. souhvězdí Hydry

(Greek god) The god of marriage and marriage ceremonies.

A prefecture of Japan. Capital: Kōbe.

/ˈhɪpnoʊs/, /ˈhɪpnɒs/
(Greek god) The god and personification of sleep. The son of Nyx and Erebus, twin brother of Thanatos, husband of Pasithea, and the father of the Oneiroi. His Roman counterpart is Somnus.

/ˈhaɪəsɪnθ/
Any bulbous plant of the genus Hyacinthus, native to the Mediterranean and South Africa.

/ˈhaɪ.bɹɪd/

1. (biology) Offspring resulting from cross-breeding different entities, e.g. two different species or two purebred parent strains.
   kříženec
2. Something of mixed origin or composition; often, a tool or technology that combines the benefits of formerly separate tools or technologies.
   hybrid

A form of warfare that blends both conventional warfare and irregular warfare, such as cyberwarfare, economic warfare, information warfare, psychological warfare and terrorism using either paramilitary or insurgents.

/haɪ.bɹɪd.aɪˈzeɪ.ʃən/
The act of hybridizing, or the state of being hybridized.

/ˈhaɪ.bɹɪd.aɪz/
(transitive) To cross-breed animals or plants to form hybrids.

/ˈhaɪdɹə/
(biology) Any of several small freshwater polyps of the genus Hydra and related genera, having a naked cylindrical body and an oral opening surrounded by tentacles.

/ˈhaɪdɹənt/

/haɪˈdɹeɪt/, /hɑɪˈdɹæɪt/, /ˈhaɪdɹeɪt/, /ˈhɑɪdɹæɪt/
(chemistry) A solid compound containing or linked to water molecules.

/haɪˈdɹeɪt/, /hɑɪˈdɹæɪt/, /ˈhaɪdɹeɪt/, /ˈhɑɪdɹæɪt/
(transitive) To take up, consume or become linked to water.

/haɪˈdɹeɪʃən/

/haɪˈdɹɒlɪk/, /haɪˈdɹɔːlɪk/
Related to, or operated by, hydraulics.

/haɪˈdɹɒlɪks/, /haɪˈdɹɔːlɪks/
The engineering science that deals with practical applications where liquid is in motion and transmits energy.

/ˈhaɪdɹəˌziːn/

1. (inorganic compound, uncountable) A corrosive, fuming liquid, NH2-NH2, used as a rocket fuel.
2. (organic compound, countable) Any member of the class of organic compounds formally derived from NH2-NH2.

/ˈhaɪ.dɹoʊ/, /[ˈhaɪ.dɹoʊ]/, /[ˈhaɪ.d͡ʒɹoʊ]/
water

1. hydro-
2. vodo-

(inorganic compound) A solution of hydrogen bromide, HBr, in water; it is a strong acid, used in the production of bromine compounds.

(organic compound) A compound consisting only of carbon and hydrogen atoms.

(medicine) A usually congenital condition in which an abnormal accumulation of fluid in the cerebral ventricles causes enlargement of the skull and compression of the brain, destroying much of the neural tissue.

/ˌhaɪdrə-/, /ˌhaɪdrəʊˌklɔrɪkˈæsɪd/
(inorganic compound) A strong acid made by dissolving the gas hydrogen chloride in water. It reacts with alkalis, bases and many metals to form chlorides; it has many industrial applications.

1. kyselina chlorovodíková
2. kyselina solná

(chemistry) A solution of hydrogen fluoride, HF, in water; it is a weak but very corrosive acid, used in the production of fluorine compounds, and in metallurgy.

/ˈhaɪdɹəd͡ʒən/, /[ˈhaɪdɹəd͡ʒən]/, /[ˈhaɪd͡ʒɹəd͡ʒən]/

1. The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.008.
2. A molecule of this molecular species

(physical chemistry) A weak bond in which a hydrogen atom in one molecule is attracted to an electronegative atom (usually nitrogen or oxygen) in the same or different molecule.

(inorganic compound) A colourless gas having an irritating smell; it has the molecular formula HBr, and dissolves in water to form hydrobromic acid; it has many industrial applications including the production of barbiturates and synthetic hormones.

(inorganic compound) An inorganic compound with the formula HCl, which forms hydrochloric acid when dissolved in water.

(inorganic compound) a colorless fuming liquid or gas, with molecular formula HF. It dissolves in water to form hydrofluoric acid and has many industrial uses including the production of Teflon and the refining of uranium; it corrodes skin, flesh and bone, and any skin contact must be avoided

(inorganic chemistry) Any binary compound of hydrogen and a halide

(inorganic compound) a colourless gas with molecular formula HI, having a suffocating smell; it forms hydriodic acid when dissolved in water

(inorganic compound) A colourless liquid, H2O2, soluble in water, used as a mild antiseptic, bleaching agent (especially for bleaching hair), oxidizing agent and chemical reagent.

(chemistry) the hydride of selenium, H2Se; it is a toxic, flammable gas, having properties similar to those of hydrogen sulfide

/ˈhaɪdɹədʒ(ə)n ˈsʌlfaɪd/, /ˈhaɪdɹədʒən ˈsʌlfaɪd/
(inorganic compound) A toxic gas, H2S, smelling like rotten eggs and used in analytical chemistry and industry.

(chemistry) the tellurium analogue of hydrogen sulfide, H2Te

(chemistry) The chemical reaction of hydrogen with another substance, especially with an unsaturated organic compound, and usually under the influence of temperature, pressure and catalysts.

A person involved in hydrogeology.

The geology of groundwater, especially concerning the physical, biological and chemical properties of its occurrence and movement.

A graph of flow past a point in a river versus time.

/haɪˈdɹɑɡ.ɹə.fi/, /haɪˈdɹɒɡ.ɹə.fi/
(nautical) The scientific measurement and description of the physical features and conditions of navigable waters and the shoreline.

1. hydrografie
2. vodopis

(inorganic compound) The acid formed when hydrogen iodide is dissolved in water.

/haɪˈdɹɒl.ə.dʒɪst/
Someone who is skilled in or practises hydrology.

The science of the properties, distribution, and effects of water on a planet's surface, in the soil and underlying rocks, and in the atmosphere

/haɪˈdɹɑləsəs/, /haɪˈdɹɒlɪsɪs/
(chemistry) A chemical process of decomposition involving the splitting of a bond and the addition of the hydrogen cation and the hydroxide anion of water.

Of, pertaining to, or accompanied by hydrolysis.

Rain, snow and other precipitation products of the condensation of atmospheric water vapour

Of or pertaining to hydrometeorology.

The branch of meteorology that studies the occurrence, movement and changes of state of water in the atmosphere.

(pathology) distension of the kidneys due to obstruction in the flow of urine

/ˈhaɪdɹənɪm/, /ˈhʌɪdɹənɪm/
(onomastics) The name of a river, lake, sea or any other body of water.

The naming of bodies of water such as rivers and lakes.

/haɪdɹəˈfəʊbɪk/
(physics, chemistry) Lacking an affinity for water; unable to absorb or to be wetted by water.

/ˈhaɪdɹəfaɪt/
(botany) A plant that lives in or requires an abundance of water, usually excluding seaweed.

All the liquid waters of the Earth or another astronomical body, as distinguished from the land and the gases of the atmosphere.

/ˌhaɪdɹəʊˈstætɪk/
(physics) Of or relating to hydrostatics.

(physics) The scientific study of fluids at rest, especially when under pressure.

(alternative medicine) Any of various techniques that use water, either externally or internally, for the treatment of disease and for the soothing of pain.

/haɪˈdɹɒks.aɪd/
(chemistry) A univalent anion (OH−) based on the hydroxyl functional group.

A basic calcium phosphate mineral that is the principal inorganic constituent of bone and teeth.

(amino acid) A hydroxy derivative of tryptophan; especially 5-hydroxytryptophan which is a precursor to the neurotransmitter serotonin

/haɪˈiːnə/

1. Any of the medium-sized to large feliform carnivores of the family Hyaenidae, native to Africa and Asia and noted for the sound similar to laughter which they can make if excited.
2. (Subsaharan Africa) A man that performs ritualized sex acts with recently widowed women and menarchal girls.

/haɪˈd͡ʒiːn/, /ˈhaɪˌd͡ʒiːn/
Those conditions and practices that promote and preserve health.

/haɪˈd͡ʒiːnɪk/, /haɪˈd͡ʒɛnɪk/, /hʌɪd͡ʒɪˈɛnɪk/
Pertaining to hygiene; clean, sanitary, free of disease.

A person skilled in hygienics, but especially a dental assistant who cleans teeth etc

/haɪˈɡɹɒmɪtə(ɹ)/
(meteorology) An instrument that measures the humidity of the air or other gases, especially the relative humidity.

/ha͜ɪ.ɡɹəˈscɔp.ɪk/
(physical chemistry, botany) Readily taking up and retaining water, especially from the atmosphere.

/ˈhaɪlɪk/
(gnosticism) The basest type of man in the gnostic theologian Valentinus' triadic grouping; a person focused on neither intellectual (psychic) nor spiritual (pneumatic) reality.

1. chlebař
2. hmotař
3. hyletik
4. materialista

/ˈhaɪmən/
(anatomy) A membrane which completely or partially occludes the vaginal opening in human females.

1. panenská blána
2. hymen

/hɪm/
A song of praise or worship, especially a religious one.

1. hymnus
2. chvalozpěv
3. chorál

/ˈhaɪpə/, /ˈhaɪpəɹ/, /ˈhɑɪpə/, /[ˈhʌɪpɚ]/

1. excessive
   hyper-
2. over, above
   nad-

/ˌhaɪpəɹˈæk.tɪv/, /ˌhɑepəɹˈæk.tɪv/

1. having an increased state of activity
2. having attention deficit disorder (no longer used by the scientific community)

The quality of being hyperactive; excessive and pathological movement and restlessness.

/haɪˈpɚ.bə.lə/
(geometry) A conic section formed by the intersection of a cone with a plane that intersects the base of the cone and is not tangent to the cone. The function y(x) = 1/x draws a hyperbola.

/haɪˈpɜːbəli/, /haɪˈpɝbəli/
(uncountable, rhetoric, literature) Deliberate or unintentional overstatement, particularly extreme overstatement.

/ˌhaɪ.pɚˈbɔl.ɪk/

1. Using hyperbole: exaggerated.
   1. nadnesený
   2. nadsazený
2. (topology) Of, pertaining to, or in a hyperbolic space (a space having negative curvature or sectional curvature).
   hyperbolický

(medicine, pathology) The condition of abnormally elevated carbon dioxide in the blood.

(pathology) Having a greater than usual number of cells

(linguistics) Nonstandard because of a mistaken idea of standard usage.

1. hyperkorektní
2. hyperspisovný

/ˌhaɪ.pə.kəˈɹɛk.ʃən/, /ˌhaɪ.pɚ.kəˈɹɛk.ʃən/
(linguistics) Nonstandard language use that results from the overapplication of a perceived prescriptive rule.

1. hyperkorektnost
2. hyperkorekce
3. hyperkorektivismus
4. hyperspisovnost

The state or condition of being hypercorrect.

1. hyperkorektnost
2. hyperspisovnost

Meticulously or excessively critical.

/ˈhaɪ.pə.kjuːb/, /ˈhaɪ.pɚ.kjuːb/

1. (geometry) A geometric figure in four or more dimensions, which is analogous to a cube in three dimensions. Specifically, the n-dimensional equivalent of a cube for any non-negative integer n.
2. (geometry) Such a figure in four dimensions; a tesseract.

(geometry) An analog of a cuboid in four or more dimensions

1. hyperkvádr
2. nadkvádr

(probability theory, statistics) A discrete probability distribution that describes the probability of k "successes" in a sequence of n draws without replacement from a finite population.

(pathology) An unusually high concentration of sugar in the blood

1. hyperglykémie
2. hyperglykemie

(economics) A very high rate of inflation.

(biology, medicine) The condition of having an abnormally high concentration of potassium ions in the blood (above the reference range).

(pathology) Excess keratin formation on the skin surface, as can be seen in a number of dermatologic conditions.

/ˈhaɪpə(ɹ)ˌlɪŋk/

An excess amount of elasticity in a bodily joint

(astronomy) The gravitational collapse of a massive star to form a black hole.

/ˈhaɪpənɪm/, /ˈhaɪpɚnɪm/
(semantics) A superordinate word or phrase; a term whose referents form a set which includes as a subset the referents of a subordinate term—as, for example, insect (being a hypernym) for ant.

/-ˈpɛ-/, /ˌhaɪpəˈpæɹəsaɪt/, /ˌhaɪpɚˈpæɹəsaɪt/
(biology) Any parasite whose host is a parasite.

(geometry) An n-dimensional generalization of a plane; an affine subspace of dimension n − 1 that splits an n-dimensional space. (In a one-dimensional space, it is a point; in two-dimensional space it is a line; in three-dimensional space, it is an ordinary plane.)

Highly or abnormally sensitive to some substances or agents, especially to some allergen.

Any heightened immune response to an antigen; an allergy; hypersensation.

(of a speed, aviation) Equal to, or greater than, or capable of achieving, five times the speed of sound.

(science fiction) A notional space orthogonal to the usual dimensions of space-time often used for faster-than-light travel.

/-ˌsfɪː/, /ˈhaɪ.pəˌsfɪə/, /ˈhaɪ.pəˌsfɪɹ/
(geometry) The set of all points in a given hyperspace that are at a given distance from a given point; a generalization of a sphere in four or more dimensions.

1. hyperkoule
2. hypersféra
3. nadkoule

/ˌhaɪ.pəˈtɛn.ʃən/, /ˌhaɪ.pɚˈtɛn.ʃən/
(medicine, cardiology) A state of abnormally high blood pressure of arterial blood (arterial hypertension) or of the intra-ocular fluid.

/ˈhaɪpəɹˌtɛkst/

1. (uncountable) Digital text in which the reader may navigate related information through embedded hyperlinks.
2. (countable) A hypertext document.

Of or relating to hypertext.

/ˌhaɪpə(ɹ)ˈθɜː(ɹ)miə/
(medicine) The therapeutic application of heat to a patient, especially as treatment to cancer.

/-ʒə/, /ˌhaɪ.pə.θaɪˈmiː.zi.ə/, /ˌhaɪ.pɚ.θaɪˈmi.ʒə/
(neuroscience) A rare condition in which a person possesses a superior autobiographical memory and is able to recall the vast majority of personal events and experiences in life.

/ˌhaɪ̯pəˈθaɪ̯ɹɔɪ̯ˌdɪzəm/
(pathology) The pathological condition resulting from these excess hormones.

(of a solution) Having a greater osmotic pressure than another.

(intransitive) To breathe quickly and deeply, especially at an abnormally rapid rate.

/haɪ.pə(ɹ)ˌvɛntəˈleɪ.ʃən/, /ˌhaɪpɚˌvɛntəˈleɪʃən/
(medicine, pulmonology) The state of breathing faster or deeper than necessary.

An enhanced state of sensory sensitivity accompanied by an exaggerated intensity of behaviors whose purpose is to detect threats.

/ˈhaɪ.fən/
The symbol "‐", typically used to join two or more words to form a compound term, or to indicate that a word has been split at the end of a line.

/ˌhaɪfəˈneɪʃən/
The inclusion of hyphens; especially, the correct locations of hyphens.

/hɪpˈnoʊsɪs/
A trancelike state, artificially induced, in which a person has a heightened suggestibility, and in which suppressed memories may be experienced.

/hɪpˈnɑ.tɪk/, /hɪpˈnɒ.tɪk/, /[hɪp̚ˈnɑ.ɾɪk̚]/

1. Of or relating to hypnosis or hypnotism.
   hypnotický
2. (pharmaceutical effect) Inducing sleep; soporific.
   1. uspávací
   2. uspávající

/hɪpˈnɑ.tɪk/, /hɪpˈnɒ.tɪk/, /[hɪp̚ˈnɑ.ɾɪk̚]/
(pharmaceutical drug) A soporific substance.

1. hypnotikum
2. uspávadlo

/ˈhɪpnətaɪ̯z/
(transitive) To induce a state of hypnosis in.

1. hypnotizovat
2. zhypnotizovat

(medicine) A state of diminished carbon dioxide in the blood.

(pathology) Containing fewer cells than normal or expected.

(chemistry) any salt of hypochlorous acid; used as a household bleach.

/ˌhaɪpoʊˈkɑndriə/, /ˌhaɪpə(ʊ)ˈkɒndriə/, /ˌhaɪpəˈ-/
(medicine) A formerly defined psychological disorder characterized by excessive preoccupation or worry about having a serious illness. No longer a current medical diagnosis; see hypochondriasis for more.

/ˌhaɪpoʊˈkɑndɹiæk/, /ˌhaɪpəʊˈkɒndɹiæk/, /ˌhaɪpəˈkɑndɹiæk/, /ˌhaɪpəˈkɒndɹiæk/, /ˌhɪpoʊˈkɒndɹiæk/, /ˌhɪpəˈkɒndɹiæk/
Related to, or affected by hypochondria.

/ˌhaɪpoʊˈkɑndɹiæk/, /ˌhaɪpəʊˈkɒndɹiæk/, /ˌhaɪpəˈkɑndɹiæk/, /ˌhaɪpəˈkɒndɹiæk/, /ˌhɪpoʊˈkɒndɹiæk/, /ˌhɪpəˈkɒndɹiæk/
A person affected with hypochondria.

(medicine) A mental disorder (in some classifications of such disorders, including ICD-11) that is characterized by excessive fear of or preoccupation with a serious illness, despite medical testing and reassurance to the contrary.

(anatomy) The upper region of the abdomen, covering the upperribs, at each side of the epigastrium.

/ˌhaɪ.pə.kəˈɹɪs.tɪk/
A nickname, especially one indicating intimacy and formed through a shortening of the original name.

/hɪˈpɑkɹəsi/, /hɪˈpɒkɹəsi/
The practice of engaging in the same behaviour or activity for which one criticises another; moral self-contradiction whereby the behavior of one or more people belies their own claimed or implied possession of certain beliefs, standards or virtues.

1. pokrytectví
2. přetvářka
3. licoměrnost

/ˈhɪ.pə.kɹɪt/
Someone who practices hypocrisy, who pretends to hold beliefs, or whose actions are not consistent with their claimed beliefs. [from early 13th c.]

1. pokrytec
2. pokrytkyně

/hɪpəˈkɹɪtɪkəl/
Characterized by hypocrisy or being a hypocrite. [from mid-16th c.]

(geometry) The locus of a point on the circumference of a circle that rolls without slipping inside the circumference of another circle.

(anatomy) An area of the human abdomen residing below the umbilicus.

(pathology) A too low level of blood glucose.

(medicine) A mild form of mania, especially the phase of several mood disorders characterized by euphoria or hyperactivity.

/ˈhaɪ.poʊ.nɪm/, /ˈhaɪpə.nɪm/, /ˈhaɪpəʊ.nɪm/
(semantics) A more specific term; a subordinate grouping word or phrase; a term designating a subclass of another more general class described by the given word.

/haɪˈpɒfɪsɪs/
(anatomy) The pituitary gland.

(medicine) A form of immunotherapy in which the patient is vaccinated with progressively larger doses of an allergen to which they have been diagnosed as being sensitive.

(medicine, cardiology) The disease or disorder of abnormally low blood pressure.

/haɪˈpɑtənjus/, /haɪˈpɑtənus/, /haɪˈpɒtənjuːz/, /[haɪˈpɑʔənuːs]/, /[haɪˈpɒʔn̩juːz]/
(geometry) The side of a right triangle opposite the right angle.

(neuroanatomy) A region of the forebrain located below the thalamus, forming the basal portion of the diencephalon, and functioning to regulate body temperature, some metabolic processes and governing the autonomic nervous system.

1. hypothalamus
2. podhrbolí

/ˌhaɪpəʊˈθɜː(ɹ)mi.ə/, /ˌhaɪpəˈθɜː(ɹ)mi.ə/
(pathology) Abnormally low body temperature; specifically, below 35 degrees Celsius for humans.

1. podchlazení
2. hypotermie

/-əsəs/, /-əsɪs/, /haɪˈpɒθɪsɪs/, /həˈpɒθɪsɪs/, /hɪˈpɒθɪsɪs/, /[haɪˈpʰɑθəsɪs]/

1. (sciences) A tentative conjecture explaining an observation, phenomenon or scientific problem and that can be tested by further observation, investigation, and/or experimentation.
2. (general) An assumption taken to be true for the purpose of argument or investigation.

1. hypotéza
2. domněnka

/-ə.saɪz/, /haɪˈpɑ.θəˌsaɪz/, /haɪˈpɒθ.ə.saɪz/, /haɪˈpɒθ.əˌsaɪz/, /haɪˈpɒθ.ɪ.saɪz/, /hɑeˈpɔθ.ə.sɑez/, /həˈpɒθ.ɪ.saɪz/, /hɪˈpɒθ.ɪ.saɪz/, /[hɑe̯ˈpɔ̟θ.ə.sɑe̯z]/, /[hʌɪˈpɑ.θəˌsaɪz]/, /[hʌɪˈpɒθ.əˌsaɪz]/
(ambitransitive) To assume or assert tentatively on uncertain grounds.

/ˌhaɪpəˈθɛtɪkəl/, /[ˌhaɪpəˈθɛɾɪkəɫ]/
Based upon a hypothesis; conjectural

In a hypothetical way; as a hypothesis.

/ˌhaɪpəʊˈθaɪɹɔɪˌdɪzəm/, /ˌhaɪpəˈθaɪɹɔɪˌdɪzəm/
(pathology) The disease state caused by insufficient production of thyroid hormone by the thyroid gland. [from 1900s]

/ˌhaɪpoʊˈtoʊnɪə/, /ˌhaɪpəʊˈtəʊnɪə/
(medicine) An abnormal loss of muscle tone.

/haɪpoʊˈtɑnɪk/, /haɪpəˈtɑnɪk/, /hʌɪpə(ʊ)ˈtɒnɪk/
(of a solution) Having a lower osmotic pressure than another.

/ˌhaɪ.poʊˈtɹoʊ.kɔɪd/, /ˌhaɪ.pə(ʊ)ˈtɹəʊ.kɔɪd/, /ˌhaɪ.pəˈtɹoʊ.kɔɪd/
(geometry) A geometric curve traced by a fixed point on the radius line outside one circle which rotates inside the perimeter of another circle.

(medicine, pulmonology) Respiratory depression, occurring when ventilation is inadequate to perform the necessary gas exchange, which may be caused by certain medical conditions, by holding one's breath, or by drug overdose.

/haɪˈpɔk.si.ə/, /ˈhaɪ.pɔk.si.ə/
(pathology) A condition in which tissues are deprived of an adequate supply of oxygen [from 1940s].

/ˈhaɪ.ɹæks/
Any of several small, paenungulate herbivorous mammals of the family Procaviidae from the order Hyracoidea, with a bulky frame and fang-like incisors, native to Africa and the Middle East.

/ˈhɪ.səp/
Any of several aromatic bushy herbs, of the genus Hyssopus, native to Southern Europe and once used medicinally.

/hɪstəˈɹɛktəmi/
(surgery) The surgical procedure to remove all of or part of the uterus.

A property of a system such that an output value is not a strict function of the corresponding input, but also incorporates some lag, delay, or history dependence, and in particular when the response for a decrease in the input variable is different from the response for an increase. For example, a thermostat with a nominal setpoint of 75° might switch the controlled heat source on when the temperature drops below 74°, and off when it rises above 76°.

/hɪˈstɛɹiə/, /hɪˈstɪɹiə/
Behavior exhibiting excessive or uncontrollable emotions, in a wide range from joy to panic but usually including anxiety or fear.

/hɪˈstɛɹɪkəl/

1. Of, or arising from hysteria.
2. Having, or prone to having hysterics.

Hysteria; a bout of hysteria.