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incisor

[in-sahy-zer] /ɪnˈsaɪ zər/
noun, Dentistry.
1.
any of the four anterior teeth in each jaw, used for cutting and gnawing.
Origin
1665-1675
1665-75; < Neo-Latin: literally, cutter, equivalent to Latin incīd(ere) to incise + -tor -tor, with -dt- > -s-
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for incisor
  • Natal teeth generally develop on the lower gum, where the central incisor teeth will appear.
  • She also identified another tooth, an upper incisor, from the same collection.
  • She had this horrendous, painful-looking dental abscess, caused by a diseased upper left incisor.
  • Lower jaw shows goldwork, right lower lateral incisor and also goldwork on the canines.
British Dictionary definitions for incisor

incisor

/ɪnˈsaɪzə/
noun
1.
a chisel-edged tooth at the front of the mouth. In man there are four in each jaw
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for incisor
n.

"cutting tooth," 1670s, from Medieval Latin incisor "a cutting tooth," literally "that which cuts into," from Latin incisus, past participle of incidere (see incision). Inscisours as the name of a cutting tool is attested from early 15c.

Online Etymology Dictionary, © 2010 Douglas Harper
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incisor in Medicine

incisor in·ci·sor (ĭn-sī'zər)
n.
Any of the four teeth adapted for cutting or gnawing, having a chisel-shaped crown and a single conical root and located in the front part of both jaws in both deciduous and permanent dentitions.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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incisor in Science
incisor
  (ĭn-sī'zər)   
A sharp-edged tooth in mammals that is adapted for cutting or gnawing. The incisors are located in the front of the mouth between the canine teeth.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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