Search Result for "anhydrous": 
Wordnet 3.0

ADJECTIVE (1)

1. without water; especially without water of crystallization; 



The Collaborative International Dictionary of English v.0.48:

Anhydrous \An*hy"drous\, a. [Gr. ? wanting water; 'an priv. +
   "y`dwr water.]
   Destitute of water; as, anhydrous salts or acids.
   [1913 Webster] Ani


WordNet (r) 3.0 (2006):

anhydrous
    adj 1: without water; especially without water of
           crystallization [ant: hydrated, hydrous]