yttrium

noun

chemical element with the atomic number of 39

L18214 on Wikidata ↗

Wiktionary

Pronunciation: /ˈɪtɹiːəm/ / /ˈjɪtɹiːəm/

noun

Etymology: From Ytterby + -ium, named after Ytterby, Sweden, the same etymological source as terbium, erbium, and ytterbium.

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