# iridium

> English word · Noun · IPA /ɪˈɹɪd.i.əm/ · frequency rank #39,868

## Definitions
1. A chemical element (symbol Ir) with an atomic number of 77: a very hard, brittle, silvery-white transition metal of the platinum group.
2. A single atom of this element.

## Etymology
From international scientific vocabulary, from the New Latin.

## Common misspellings (9)
`iirdium`, `irdiium`, `iriddium`, `iridimu`, `iridiumm`, `iriduim`, `iriidum`, `irridium`, `riidium`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/iridium