ytterbium
/jəˈtɚ.bi.əm/, /jɪˈtɚ.bi.əm/, /ɪˈtɚ.bi.əm/, /ɪˈtɜː.bi.əm/, /ˈjə.tɚ.bi.əm/, /ˈjɪ.tɚ.bi.əm/
noun
A metallic chemical element (symbol Yb) with an atomic number of 70.
ytterbium
yttrium
/ˈjɪtɹiːəm/, /ˈɪtɹiːəm/
noun
A silvery metallic chemical element (symbol Y) with an atomic number of 39, mainly found in combination with lanthanide elements in rare-earth minerals.
yttrium