from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A large landmass, such as India, that is part of a continent but is considered either geographically or politically as an independent entity.
- n. A large landmass, such as Greenland, that is smaller than a continent.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A large landmass which is either smaller than a continent (such as Greenland), or part of an even larger continent (such as the Indian subcontinent).
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a large and distinctive landmass (as India or Greenland) that is a distinct part of some continent
sub- + continent (Wiktionary)