# latissimus dorsi

> English word · Noun

## Definitions
1. A large, flat, dorsolateral muscle on the trunk, posterior to the arm, and partly covered by the trapezius on its median dorsal region.

## Etymology
From Latin lātissimus (“widest, broadest”) (superlative of lātus (“wide, broad”)) + dorsī (genitive of dorsum (“the back”)).

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