from The American Heritage® Dictionary of the English Language, 4th Edition
- v. Variant of rarefy.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. Alternative spelling of rarefy.
from The Century Dictionary and Cyclopedia
- A common but incorrect spelling of rarefy.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. make more complex, intricate, or richer
rare + -ify (Wiktionary)