from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Either of two broad, flat, triangular muscles running from the vertebral column to the humerus.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Either of the larger, flat, dorso-lateral muscles on the trunk, posterior to the arm, and partly covered by the trapezius on its median dorsal region.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a broad flat muscle on either side of the back
New Latin lātissimus dorsī : Latin lātissimus, superlative of lātus, wide + Latin dorsī, genitive of dorsum, back.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin lātissimus ("widest, broadest"), superlative oflātus ("wide, broad"), + dorsī, genitive of dorsum ("the back"). (Wiktionary)