Dictionary
fumar'ic ac'id
a colorless, odorless, crystalline, slightly water-soluble solid, C
4H
4O
4, isomeric with maleic acid, essential to cellular respiration in most eukaryotic organisms: used in the making of synthetic resins and as a replacement for tartaric acid in beverages and baking powders. Also called
boletic acid, lichenic acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.