Definition of anhydrous in English:

Share this entry

anhydrous

Pronunciation: /anˈhīdrəs/

adjective

Chemistry
(Of a substance, especially a crystalline compound) containing no water.
Example sentences
  • The sample was maintained at room temperature for 24 h to ensure conversion of any anhydrous cholesterol crystals to the monohydrate form.
  • The plants produced urea ammonium nitrate and anhydrous ammonia.
  • The water in the mantle may be contained either in high pressure hydrous phases, or alternatively as small hydrous defects in nominally anhydrous minerals.

Origin

Early 19th century: from Greek anudros (from an- 'without' + hudōr 'water') + -ous.

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.