from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To become mixed or united by penetration: planes that interpenetrate in a painting.
- transitive v. To penetrate reciprocally: The streams interpenetrate each other at the rapids.
- transitive v. To penetrate thoroughly; permeate or pervade.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To penetrate mutually or reciprocally
- v. To permeate or pervade
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To penetrate between or within; to penetrate mutually.
- intransitive v. To penetrate each the other; to penetrate between bodies or their parts.
from The Century Dictionary and Cyclopedia
- To penetrate or pass into reciprocally; unite with by mutual penetration.
- To penetrate between or among (the component parts of a body or substance); pass into or within the different parts of (a body); penetrate in various directions or throughout.
- To penetrate mutually; become united by mutual penetration.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. penetrate mutually or be interlocked
- v. spread or diffuse through
inter- + penetrate (Wiktionary)