chlo·ro·form (klôr??-fôrm?)n. A clear, colorless, dense, sweet-smelling liquid, CHCl3, used in refrigerants, propellants, and resins, as a solvent, and sometimes as an anesthetic. Chloroform, once widely used in human and veterinary surgery, has generally been replaced by less toxic, more easily controlled agents.tr.v. chlo·ro·formed, chlo·ro·form·ing, chlo·ro·forms 1. To treat with chloroform to anesthetize, render unconscious, or kill.2. To apply chloroform to.[chloro- + form(yl).]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.chloroform (?kl??r??f??m) n (Elements & Compounds) a heavy volatile liquid with a sweet taste and odour, used as a solvent and cleansing agent and in refrigerants: formerly used as an inhalation anaesthetic. Formula: CHCl3. Systematic name: trichloromethane [C19: from chloro- + form(yl) (in an obsolete sense that applied to a CH radical)]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014chlo?ro?form (?kl?r ??f?rm, ?klo?r-) n. 1. a colorless volatile liquid, CHCl3, used chiefly in medicine as a solvent and formerly as an anesthetic. v.t. 2. to administer chloroform to, esp. in order to anesthetize, make unconscious, or kill. [1830?40; chloro-2 + form (yl)] chlo`ro?for?mic, adj. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.chlo·ro·form (klôr??-fôrm?) A colorless, toxic, sweet-tasting liquid, CHCl3, used chiefly as a solvent. It was also once widely used as an anesthetic.The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.