(redirected from Clathrates)
Also found in: Thesaurus, Medical, Encyclopedia.


1. Biology Having a latticelike structure or appearance: clathrate scales.
2. Chemistry Of or relating to inclusion complexes in which molecules of one substance are completely enclosed within the crystal structure of another.
n. Chemistry
A clathrate compound, such as methane hydrate.

[Latin clāthrātus, past participle of clāthrāre, to furnish with a lattice, from clāthrī, clātra, lattice, from Greek klēithra, pl. of klēithron, door bar, from kleiein, to close.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


resembling a net or lattice
(Chemistry) chem a solid compound in which molecules of one substance are physically trapped in the crystal lattice of another
[C17: from Latin clāthrāre to provide with a lattice, from Greek klēthra, from klaithron a bar]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈklæθ reɪt)

1. Biol. resembling a lattice; divided or marked like latticework.
2. a substance in which a molecule of one compound fills a cavity within the crystal lattice of another compound.
[1615–25; < Latin clāt(h)rātus, past participle of clāt(h)rāre to fit with bars <clāt(h)ra bars, lattice < Greek klêithron bar < kleíein to close]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.clathrate - having a latticelike structure pierced with holes or windows
phytology, botany - the branch of biology that studies plants
reticular, reticulate - resembling or forming a network; "the reticulate veins of a leaf"; "a reticulated highway system"
2.clathrate - designating or relating to a compound in which one component is physically enclosed within the crystal structure of another
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
enclosed - closed in or surrounded or included within; "an enclosed porch"; "an enclosed yard"; "the enclosed check is to cover shipping and handling"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Six phase changes in the fluid inclusions were recorded during cooling/heating routines: (1) CO2 melting temperature ([T.sub.mCO2]), (2) eutectic temperature ([T.sub.e]), (3) final ice melting temperature ([T.sub.mIce]), (4) clathrates melting temperature ([T.sub.mClath]), (5) C[O.sub.2] homogenization temperature ([T.sub.hCO2]) and (6) total homogenization temperature ([T.sub.h]).
This seasonal pattern seems to imply that temperature changes might be triggering the seasonal release, the scientists said, suggesting that the methane might be stored in water-based crystals called clathrates. "That's a huge change, completely unexpected," Webster said at the briefing.
The gas may be stored in the cold Martian subsurface in water-based crystals called clathrates, researchers said.
There are a large variety of bulk TE materials that are under investigation, including singe phase and alloys of lead chalcogenides (PbX, X = S, Se, or Te) [6-11], binary skutterudites (M[X.sub.3], M = Co, Rh or Ir; X = P, As, or Sb) [12-14], clathrates [15], copper chalcogenides ([Cu.sub.2-x]X, X = S, Se, or Te) [16], oxides (e.g., NaxCo[O.sub.2], ZnO, and Ruddlesden-Popper homologous series) [17-20], half-Heusler compounds [21, 22], [Bi.sub.2]/[Te.sub.3]/[Sb.sub.2][Te.sub.3] [23, 24], SiGe [25], and SnSe [3].
Kalman, "Inclusion compounds containing a drug: structure and thermal stability of the first clathrates of nitrazepam and isothiocyanato ethanol complexes of Co(II) and Ni(II)," Inorganica Chimica Acta, vol.
The [Si.sup.4+] and [Al.sup.3+] migrated over long distances in the form of clathrates and precipitated as authigenic kaolinite (K1) in the proper geological environment.
One idea that's become a lively topic of discussion among Rosetta's scientists is that the 02 became trapped in "cages" of ice (called clathrates).
One possible explanation for these phenomena is that the MF produces changes in water cluster structure and/or in the formation of clathrates within the gases dissolved in it.
Late-capitalist world society doesn't, however, know how to carry out climate change mitigation, not in the sense in which climate change mitigation would actually mean a reversal of the primary trends indicating climate change (increasing atmospheric CO2 to the extent of 2.6 ppm/year, rising and acidifying oceans, the simplification of both oceanic and land-based ecosystems, the ongoing release of methane clathrates from permafrost and from ocean floors, increasing weather disruption, increasing average temperatures and so on).
Natural emissions of these gases are of particular interest in the Arctic where there are large vulnerable reservoirs of carbon in the soil and possibly clathrates that can be released into the atmosphere as C[O.sub.2] and C[H.sub.4] by thawing and decomposition, potentially acting as a positive feedback on global climate.
However, under the cold conditions typical of the surface of Pluto, methane clathrates are very stable and extremely strong, so they might easily mechanically support the observed bladed structures.

Full browser ?