anhydrous

[ an-hahy-druh s ]

/ ænˈhaɪ drəs /

SEE MORE SYNONYMS FOR anhydrous ON THESAURUS.COM

adjective Chemistry.

with all water removed, especially water of crystallization.

RELATED WORDS

arid, bone-dry, dry, parched, waterless

Nearby words

Origin of anhydrous

1810–20; < Greek ánȳdros waterless (with etymological h restored). See an-¹, hydro-¹, -ous

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for anhydrous

Above this temperature the anhydrous salt is the stable solid phase.
The Phase Rule and Its Applications|Alexander Findlay
This compound is water-soluble, but caffein can not be extracted from the crystals with anhydrous solvents.
All About Coffee|William H. Ukers
Potassium and sodium readily dissolve in the anhydrous acid with evolution of hydrogen and formation of 578 fluorides.
Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5|Various
That salt is anhydrous; but there is another variety of it, which contains nearly 40 per cent.
A Dictionary of Arts, Manufactures and Mines|Andrew Ure

By careful 188 heating it may be made to yield the anhydrous salt.
Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 2|Various

British Dictionary definitions for anhydrous

anhydrous

/ (ænˈhaɪdrəs) /

adjective

containing no water, esp no water of crystallization

Word Origin for anhydrous

C19: from Greek anudros; see an-, hydro-

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for anhydrous

anhydrous

adj.

"containing no water," 1819, a modern coinage from Greek an-, privative prefix (see an- (1)), + hydor "water" (see water (n.1)). Greek did have anhydros "waterless," used of arid lands or corpses that had not been given proper funeral rites.

Medicine definitions for anhydrous

anhydrous

[ ăn-hī′drəs ]

adj.

Without water, especially water of crystallization.

Science definitions for anhydrous

anhydrous

[ ăn-hī′drəs ]

Not containing water, especially water of crystallization.