[uh-zee-uh-trohp, ey-zee-]

noun Physical Chemistry.

any liquid mixture having constant minimum and maximum boiling points and distilling off without decomposition and in a fixed ratio, as isopropyl alcohol and water.

Nearby words

  1. azaña, manuel,
  2. azbine,
  3. azcapotzalco,
  4. azedarach,
  5. azeglio,
  6. azerbaidzhan,
  7. azerbaijan,
  8. azerbaijani,
  9. azeri,
  10. azerty keyboard

Origin of azeotrope

1910–15; a-6 + Greek zé(ein) to boil + -o- + -trope

Related formsa·ze·o·trop·ic [ey-zee-uh-trop-ik, -troh-pik] /ˌeɪ zi əˈtrɒp ɪk, -ˈtroʊ pɪk/, adjectivea·ze·ot·ro·py [ey-zee-o-truh-pee] /ˌeɪ ziˈɒ trə pi/, a·ze·ot·ro·pism, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for azeotrope



a mixture of liquids that boils at a constant temperature, at a given pressure, without change of composition
Derived Formsazeotropic (ˌeɪzɪəˈtrɒpɪk), adjective

Word Origin for azeotrope

C20: from a- 1 + zeo-, from Greek zein to boil + -trope

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

Medicine definitions for azeotrope


[ə-zēə-trōp′, āzē-]


A liquid mixture of two or more substances that retains the same composition in the vapor state as in the liquid state when distilled or partially evaporated under a certain pressure.
Related formsa′ze•o•tropic (a′zē-ə-trŏpĭk, -trōpĭk) adj.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.