Meaning of triacid

tri•ac•id

Pronunciation: (trī-as'id), [key]
— adj. Chem.
  1. capable of combining with three molecules of a monobasic acid: a triacid base.
  2. noting acid salts containing three replaceable hydrogen atoms.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.