chelate

¹che·late

adjective \ˈkē-ˌlāt also ˈchē-\

Definition of CHELATE

1

: resembling or having chelae

2

[from the pincerlike way in which the metal ion is held] : of, relating to, or being a chelate

First Known Use of CHELATE

1826

²chelate

verb

che·lat·edche·lat·ing

Definition of CHELATE

transitive verb

: to combine with (a metal) so as to form a chelate ring

intransitive verb

: to react so as to form a chelate ring

— che·lat·able \-ˌlā-tə-bəl\ adjective

First Known Use of CHELATE

1922

Rhymes with CHELATE

abate, ablate, adnate, aerate, age-mate, agnate, airdate, airfreight, alate, arête, await, backdate, baldpate, bandmate, baseplate, bedmate, bedplate, berate, birthrate, bistate, bite plate, blank slate, blind date, blue plate, bookplate, breastplate, casemate, castrate, caudate, cell plate, cerate, cheapskate, checkmate, chordate, citrate, classmate, clavate, cognate, collate, comate, conflate, connate, Cook Strait, cordate, create, cremate, crenate, curate, cut-rate, deadweight, death rate, debate, deflate, delate, dentate, derate, dictate, dilate, disrate, donate, doorplate, downstate, drawplate, elate, end plate, equate, estate, faceplate, falcate, fellate, filtrate, first-rate, fishplate, fixate, flatmate, floodgate, fluxgate, flyweight, folate, formate, frustrate, gelate, gestate, ground state, gyrate, hamate, hastate, headgate, Hell Gate, helpmate, home plate, hot plate, housemate, hydrate, ice-skate, inflate, ingrate, inmate, innate, instate, irate, jailbait, Kuwait, lactate, lapse rate, legate, liftgate, ligate, lightweight, liquate, lobate, locate, lunate, lustrate, lych-gate, lyrate, magnate, makebate, makeweight, mandate, messmate, migrate, misstate, mutate, nameplate, narrate, negate, Newgate, nitrate, notate, nutate, oblate, of late, orate, ornate, ovate, palmate, palpate, peltate, phonate, pinnate, placate, playdate, playmate, plicate, portrait, postdate, predate, prime rate, probate, prolate, pronate, prorate, prostate, prostrate, punctate, pupate, quadrate, rain date, ramate, rebate, red-bait, relate, restate, roommate, rostrate, rotate, saccate, schoolmate, seatmate, sedate, sensate, septate, serrate, shipmate, short weight, slave state, soleplate, soul mate, spectate, spicate, squamate, stagnate, stalemate, stellate, striate, sublate, substrate, sulcate, summate, tailgate, teammate, Tebet, tenth-rate, ternate, terneplate, testate, third-rate, tinplate, to date, toeplate, tollgate, tractate, translate, tristate, truncate, unweight, update, uprate, upstate, V-8, vacate, vallate, valvate, vibrate, virgate, vulgate, whitebait, workmate

³chelate

noun

Definition of CHELATE

: a compound having a ring structure that usually contains a metal ion held by coordinate bonds

First Known Use of CHELATE

1943

chelate

noun    (Concise Encyclopedia)

Any of a class of coordination or complex compounds consisting of a central atom of a metal (usually a transition element) attached to a large molecule (ligand). Any ligand that can bind to the metal at two or more points to form a ring structure, more stable than a nonchelated compound of the same general chemical formula, is a chelating agent. The process of binding to the metal is called chelation. Chelating agents such as EDTA salts are used in medicine to remove toxic metals (e.g., lead, cadmium) from the body. Others are used in analysis as indicators and in industry to extract metals. The iron-binding porphyrin group in hemoglobin, the magnesium-binding porphyrin in chlorophyll, and the cobalt-binding porphyrin in vitamin B are natural chelators.