[ klath-reyt ]
/ ˈklæθ reɪt /


Biology. resembling a lattice; divided or marked like latticework.


Chemistry. a substance in which a molecule of one compound fills a cavity within the crystal lattice of another compound.
Compare adduct.

Origin of clathrate

1615–25; < Latin clāt(h)rātus, past participle of clāt(h)rāre to fit with bars, verbal derivative of clāt(h)ra bars, lattice < Greek, Doric equivalent of Attic klâithra, plural of klêithron bar; see clithral Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for clathrate


/ (ˈklæθreɪt) /


resembling a net or lattice


chem a solid compound in which molecules of one substance are physically trapped in the crystal lattice of another

Word Origin for clathrate

C17: from Latin clāthrāre to provide with a lattice, from Greek klēthra, from klaithron a bar
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 clathrate


[ klăthrāt′ ]


Having a latticelike structure or appearance.
Of or relating to inclusion complexes in a chemical compound in which molecules of one substance are completely enclosed within the crystal structure of another.


A clathrate compound, such as urea.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.