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[bahy-kuhs-pid] /baɪˈkʌs pɪd/
Also, bicuspidate. having or terminating in two cusps or points, as certain teeth.
premolar (def 4).
Origin of bicuspid
First recorded in 1830-40; bi-1 + cuspid Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for bicuspid
Historical Examples
  • A molar, a bicuspid, a canine, and an incisor were laid in succession on the table.

    Oh, You Tex! William Macleod Raine
  • This grading of form is not observed in passing from the cuspid to the bicuspid in man.

    Degeneracy Eugene S. Talbot
  • bicuspid, bī-kus′pid, adj. having two cusps: a pre-molar tooth.

  • The valves of the left side are the most subject—the bicuspid or mitral and the aortic or semilunar.

    Special Report on Diseases of the Horse United States Department of Agriculture
  • That of the left ventricle has only two flaps, and is therefore often spoken of as the bicuspid or mitral valve.

  • Entry (Mauser), through the mouth, knocking out the left upper canine and bicuspid teeth.

  • The lingual tubercle is very constant on the first bicuspid of man and is as well developed as the buccal.

    Degeneracy Eugene S. Talbot
  • George T. Carpenter, of Chicago, has a right superior, second bicuspid with three well formed roots.

    Degeneracy Eugene S. Talbot
  • The upper and lower are both cone-shaped, and the superior first bicuspid exhibits tendency thereto.

    Degeneracy Eugene S. Talbot
British Dictionary definitions for bicuspid


having or terminating in two cusps or points
a bicuspid tooth; premolar
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 bicuspid

1826, "having two parts," from bi- + Latin cuspidem "cusp, point." As a noun, short for bicuspid molar, attested from 1837.

Online Etymology Dictionary, © 2010 Douglas Harper
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bicuspid in Medicine

bicuspid bi·cus·pid (bī-kŭs'pĭd)
Having two points or cusps. n.
See premolar.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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bicuspid in Science
Adjective  Having two points or cusps.

Noun  A bicuspid tooth, especially a premolar.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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