# substituent

> English word · Noun · IPA [sʌbˈstɪtʃuənt] · frequency rank #82,819

## Definitions
1. Any atom, group, or radical substituted for another, or entering a molecule in place of some other part which is removed.
2. Pro-form.

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