Chelate — [ç , zu griechisch chēle̅ »Kralle«, »Krebsschere«], Singular Chelat das, s, Chelatkomplexe [ç ], Chelatverbindungen [ç ], allgemein zyklische Verbindungen, bei denen ein bestimmtes Atom an zwei (oder mehrere) funktionelle Gruppen eines Moleküls … Universal-Lexikon
chelate — [kē′lāt΄] adj. resembling or having chelae n. a chemical compound in which the central atom (usually a metal ion) is attached to neighboring atoms by at least two coordinate bonds in such a way as to form a closed chain vt. chelated, chelating 1 … English World dictionary
Chelate — Che late, a. (Zo[ o]l.) Same as {Cheliferous}. [1913 Webster] … The Collaborative International Dictionary of English
chelate — che late, n. (Chem.) a compound formed by combination of a metal ion in solution with a compound containing heteroatoms (such as oxygen or nitrogen), in which at least two heteroatoms are bound to the metal. The bonds may be covalent or non… … The Collaborative International Dictionary of English
chelate — (adj.) having pincer like claws, 1826 as a term in zoology; 1920 in chemistry, from Mod.L. chela claw (from Gk. khele claw, talon, cloven hoof ) + ATE (Cf. ate). Related: Chelated; chelating; chelation … Etymology dictionary
chelate — chelatable, adj. /kee layt/, adj., n., v., chelated, chelating. adj. 1. Chem. a. 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. b. of or noting… … Universalium
Chélate — Chélation Complexe chélate de l EDTA avec un cation métallique La chélation (prononcer kélassion, du grec khêlê : « pince ») est un processus physico chimique au cours duquel est formé un complexe, le chélate, entre un ligand, dit… … Wikipédia en Français
chelate — I. adjective Date: 1826 1. resembling or having chelae 2. [from the pincerlike way in which the metal ion is held] of, relating to, or being a chelate II. verb (chelated; chelating) Date: 1922 transitive verb to combine with (a metal) so as to… … New Collegiate Dictionary
chelate — 1. adjective having chelae, or in the form of a chela 2. noun a chelate compound 3. verb a) to form a chelate compound by combining a metal atom … Wiktionary
chelate — che•late [[t]ˈki leɪt[/t]] adj. n. v. lat•ed, lat•ing 1) chem. 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 2) zool. having a chela or chelae… … From formal English to slang
