EXAMPLES | WORD ORIGIN adjective . Chemistry of or noting a heterocyclic compound having a central metallic ion attached by covalent bonds to two or more nonmetallic atoms in the same molecule. of or noting a compound having a cyclic structure resulting from the formation of one or more hydrogen bonds in the same molecule. . Zoology having a chela or chelae. noun . Chemistry a chelate compound. verb (used without object), che·lat·ed, che·lat·ing. . Chemistry (of a heterocyclic compound) to react to form a chelate. (of a compound) to form a ring by forming one or more hydrogen bonds. verb (used with object), che·lat·ed, che·lat·ing. . Chemistry to combine (an organic compound) with a metallic ion to form a chelate. Nearby words chekhovian, chekiang, chela, chelan, chelan, lake, chelating agent, chelating agents, chelation, cheli-, chelicera Related forms che·lat·a·ble, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for chelate British Dictionary definitions for chelate noun chem a coordination compound in which a metal atom or ion is bound to a ligand at two or more points on the ligand, so as to form a heterocyclic ring containing a metal atom adjective zoology of or possessing chelae chem of or denoting a chelate verb (intr) chem to form a chelate Word Origin for chelate
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for chelate adj.
"having pincer-like claws," 1826 as a term in zoology; 1920 in chemistry, from Modern Latin
chela "claw" (from Greek khele "claw, talon, cloven hoof;" see chelicerae) + -ate (2). Related: Chelated; chelating; chelation.
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for chelate n. A chemical compound in the form of a heterocyclic ring, containing a metal ion attached by coordinate bonds to at least two nonmetal ions. v. To combine a metal ion with a chemical compound to form a ring. To remove a heavy metal, such as lead or mercury, from the bloodstream by means of a chelate. Related forms che ′late′ adj. che•la ′tion n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Science definitions for chelate A chemical compound in the form of a ring that contains a metal ion attached by coordinate bonds to at least two nonmetal ions. Many commercial dyes as well as important biological substances, such as chlorophyll and the heme of hemoglobin, are chelates.
The American Heritage® Science Dictionary
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