from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An individual with a robust, muscular body build caused by the predominance of structures developed from the embryonic mesodermal layer.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A person with pronounced muscular development and low body fat.
- n. : Theoretical body type in which a person naturally has lower body fat and greater ability to achieve muscular development than average.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a person with a well-developed muscular body
meso(derm) + -morph.(American Heritage® Dictionary of the English Language, Fourth Edition)
Derived from mesoderm + -morph from William Herbert Sheldon. (Wiktionary)