Meaning of monoacid

mon•o•ac•id

Pronunciation: (mon"ō-as'id, mon'ō-as"id), [key]
— Chem. Chem.
—adj.
—n.
  1. an acid having one replaceable hydrogen atom.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.