Definition of anhydrous
: free from water and especially water of crystallization
Recent Examples of anhydrous from the Web
The valve that failed was on a compressor in the company's anhydrous ammonia system for refrigeration, said Cyndy Chanaca of the Department of Energy & Environmental Protection.
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Medical Definition of anhydrous
: free from water and especially water that is chemically combined in a crystalline substance anhydrous ammonia
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