# yttrium

> English word · Noun · IPA /ˈɪtɹiːəm/ · frequency rank #81,055

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

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

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/yttrium