teeth (t?th)n. Plural of tooth.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.teeth (ti??) n1. (Dentistry) the plural of tooth2. the most violent part: the teeth of the gale. 3. the power to produce a desired effect: that law has no teeth. 4. by the skin of one’s teeth See skin145. get one’s teeth into to become engrossed in6. in the teeth of in direct opposition to; against: in the teeth of violent criticism he went ahead with his plan. 7. show one’s teeth to threaten, esp in a defensive manner8. to the teeth to the greatest possible degree: armed to the teeth. Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014tooth (tu?) n., pl. teeth, (?tu ???, -ð??) n. 1. (in most vertebrates) one of the hard bodies or processes usu. attached in a row to each jaw, serving for the prehension and mastication of food, as weapons of attack or defense, etc., and in mammals typically composed chiefly of dentin surrounding a sensitive pulp and covered on the crown with enamel. 2. (in invertebrates) any of various similar or analogous processes occurring in the mouth or alimentary canal, or on a shell. 3. any projection resembling a tooth. 4. one of the projections of a comb, rake, saw, etc. 5. a. any of the uniform projections on a gear or rack by which it drives or is driven by a gear, rack, or worm. b. any of the uniform projections on a sprocket by which it drives or is driven by a chain. 6. Bot. any small, toothlike marginal lobe. 7. a sharp, distressing, or destructive attribute or agency. 8. taste, relish, or liking. 9. teeth, effective power, esp. to enforce or accomplish something: to put teeth into a law. 10. a roughened surface, as on a sharpening stone, grinding wheel, or drawing paper. v.t. 11. to furnish with teeth. v.i. 12. to interlock, as cogwheels. Idioms: 1. in the teeth of, straight into, against, or in defiance of. 2. long in the tooth, noticeably old; elderly. 3. set one’s teeth, to become resolute; prepare for difficulty. 4. show one’s teeth, to become menacing; reveal one’s hostility. 5. to the teeth, to the fullest extent; fully; entirely: armed to the teeth. [before 900; Middle English; Old English t?th, c. Old Frisian t?th, Old Saxon tand, Old High German zan(t), Old Norse t?nn; akin to Gothic tunthus, Latin d?ns, Greek odoús, Skt dánta] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.TeethSee also anatomy; body, human. acrodontismthe condition of having teeth without roots attached to the alveolar ridge of the jaws, as in certain animals. ? acrodont, adj.bruxismthe habit of purposelessly grinding one?s teeth, especially during sleep. Also called bruxomania.cariositythe condition of being decayed or carious, especially with regard to teeth.dedentitionthe shedding of teeth.dentitionthe production or cutting of teeth; teething. Also called odontogeny.dentologyodontology.endodontics, endodontiathe branch of dentistry concerned with diseases of the dental pulp and removal of the dental pulp, the nerve and other tissue of the pulp cavity; root canal therapy. Also endodontology. ? endodontist, n.endodontologyendodontics.exodontiathe branch of dentistry concerned with the extraction of teeth. ? exodontist, n.gomphiasisa condition of the teeth in which they become loose, especially the molars.odontogenydentition. ? odontogenic, adj.odontographya treatise describing or giving the history of teeth. ? odontographic, adj.odontology1. the science that studies teeth and their surrounding tissues, especially the prevention and cure of their diseases.2. dentistry. Also called dentology. ? odontologist, n. ? odontological, adj.odontophobiaan abnormal fear of teeth, especially of animal teeth.orthodontics, orthodontiathe branch of dentistry that studies the prevention and correction of irregular teeth. ? orthodontist, n. ? orthodontic, adj.periodontics, periodontiathe branch of dentistry that studies and treats disease of the bone, connecting tissue, and gum surrounding a tooth. ? periodontist, n. ? periodontic, adj.prophylactodontics, prophylactodontiapreventive dentistry. ? prophylactodontist, n. ? prophylactodontic, adj.prosthodontiathe branch of dentistry concerned with the replacement of missing teeth with dentures, bridges, etc. ? prosthodontist, n.ulatrophia, ulatrophya shrinking or wasting away of the gums.-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.