from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Of or relating to an ectomorph.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. of or pertaining to an ectomorph
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. having a build with little fat or muscle but with long limbs
ecto(derm) + -morphic.(American Heritage® Dictionary of the English Language, Fourth Edition)
ectoderm + -morphic (Wiktionary)