from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A chemical compound formed from another, often an acid, by the removal of water.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any compound formally derived from another (or from others) by the loss of a water molecule, especially acid anhydrides
from the GNU version of the Collaborative International Dictionary of English
- n. An oxide of a nonmetallic body or an organic radical, capable of forming an acid by uniting with the elements of water; -- so called because it may be formed from an acid by the abstraction of water.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a compound formed from one or more other compounds in a reaction resulting in removal of water
anhydr(ous) + -ide.(American Heritage® Dictionary of the English Language, Fourth Edition)
an- + hydride (Wiktionary)