glyoxaline

from The Century Dictionary.

• noun A colorless compound , formed together with glycoside, by the action of concentrated ammonia on glyoxal.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Chem.) A white, crystalline, organic base, C3H4N2, produced by the action of ammonia on glyoxal, and forming the origin of a large class of derivatives hence, any one of the series of which glyoxaline is a type; -- called also oxaline.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun organic chemistry An organic base, C3H4N2, produced by the action of ammonia on glyoxal.
• noun organic chemistry Any of the series of which glyoxaline is a type.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an organic base C3H4N2; a histamine inhibitor