# antimony

> English word · Noun · IPA /ˈæn.tɪ.mə.niː/ · frequency rank #50,357

## Definitions
1. A chemical element (symbol Sb, from Latin stibium) with an atomic number of 51: in its stable allotrope, a lustrous gray and very brittle metal.
2. The alloy stibnite.

## Etymology
From Medieval Latin antimonium, attested in the 11th century; see also the Wikipedia section.

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