yttrium

/ˈɪ.tɹi.əm/

IPA: /IH1 T R IY0 AH0 M/

noun
  1. 1

    A silvery metallic chemical element (symbol Y) with an atomic number of 39, mainly found in combination with lanthanide elements in rare-earth minerals.

Source: https://en.wiktionary.org/wiki/yttrium