an·​hy·​drous | \-drəs \

Definition of anhydrous 

: free from water and especially water of crystallization

Examples of anhydrous in a Sentence

Recent Examples on the Web

Speakers showed the council security video footage and television news coverage of two anhydrous ammonia leaks at other U.S. plants, including one that killed a woman. David Twiddy, kansascity, "Olathe uses tax incentives to draw aircraft supplier’s manufacturing plant from NKC," 6 Sep. 2017 According to a 2014 report, the plant stores 66,260 pounds of anhydrous sulfur dioxide. Christopher M. Matthews, WSJ, "New Fires Erupt at Arkema Plant Outside Houston," 1 Sep. 2017 Or, a big one is handling anhydrous ammonia in the refrigeration systems, because that stuff will kill you very quickly. Joe Pinsker, The Atlantic, "What the Meat Industry Looks Like From the Inside," 31 Aug. 2017 The ship lost electrical power Saturday, causing levels of anhydrous ammonia to rise. Author: Suzanna Caldwell, Alaska Dispatch News, "Fishing vessel under pollution watch after it lost power near Unalaska," 21 Aug. 2017 A 100-foot sheen was reportedly emanating from the barge, which was carrying 2,500 tons anhydrous ammonia and 800 gallons of diesel fuel, according to the Coast Guard. Laura Mcknight,, "Barge afire off the Mississippi coast carried anhydrous ammonia, diesel fuel: Coast Guard," 3 Aug. 2017 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. Christine Dempsey,, "Ammonia Leak At Burnside Ice In East Hartford," 2 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'anhydrous.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of anhydrous

1802, in the meaning defined above

History and Etymology for anhydrous

Greek anydros, from a- + hydōr water — more at water

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Time Traveler for anhydrous

The first known use of anhydrous was in 1802

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More Definitions for anhydrous


an·​hy·​drous | \(ˈ)an-ˈhī-drəs \

Medical Definition of anhydrous 

: free from water and especially water that is chemically combined in a crystalline substance anhydrous ammonia

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to clear from alleged fault or guilt

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