: free from water and especially water of crystallization.

What is the purpose of anhydrous?

In addition to its use as a nitrogen fertilizer, anhydrous ammonia has other purposes on the farm. It has been used with high-moisture grains to control mold growth. When using it with grain, use the same precautions that you use when applying it as fertilizer.

What does the word anhydrous or anhydride mean?

(ænˈhaidraid, -drɪd) noun Chemistry. a compound formed by removing water from a more complex compound: an oxide of a nonmetal (acid anhydride) or a metal ( basic anhydride) that forms an acid or a base, respectively, when united with water. a compound from which water has been abstracted. [1860–65; anhydrous + -ide]