Meaning of trihydrate

tri•hy•drate

Pronunciation: (trī-hī'drāt), [key]
— n. Chem.
  1. a hydrate that contains three molecules of water, as potassium pyrophosphate, KPO&multiplydot;3HO.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.