# sesquiterpenoid

> English word · Noun

## Definitions
1. A terpenoid having a C₁₅ skeleton.

## Etymology
From sesqui- (“one and a half”) + terpenoid, by comparison with a monoterpenoid, which has two isoprene units.

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