Anhydride

n.

1.

(Chem.) 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.

Noun

1.

anhydride - a compound formed from one or more other compounds in a reaction resulting in removal of water

acetic anhydride, chemical compound, compound, phthalic anhydride