# propyl

> English word · Noun · IPA /ˈpɹoʊpəl/ · frequency rank #96,382

## Definitions
1. Either of two isomeric univalent hydrocarbon radicals, C₃H₇, formally derived from propane by the loss of a hydrogen atom.

## Etymology
From the chemical prefix propyl-, from propylic or directly from earlier French propylique, from prop(ionique) + -yle + -ique, where -yle, as in French méthylène, is from ὕλη (húlē, “wood, substance”).

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