from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To heat (an oven, for example) beforehand.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. to heat something in preparation for further action, especially cooking
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. heat beforehand
pre- + heat (Wiktionary)