hypophosphorous acid: Meaning and Definition of

hy'pophos'phorous ac'id

Pronunciation: [key]
  1. a colorless or yellowish, water-soluble, liquid, monobasic acid, HPO, having a sour odor, and used as a reducing agent.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.