Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Having two points or cusps, as the crescent moon.
  • noun A bicuspid tooth, especially a premolar.

from The Century Dictionary.

  • Having two points, fangs, or cusps.
  • Specifically applied — In geometry, to a curve having two cusps, In human anatomy, to the premolar teeth or false molars, of which there are two on each side above and below, replacing the milk-molars; to the mitral valve guarding the left auriculoventricular orifice of the heart, the corresponding right orifice being guarded by the tricuspid valve, In entomology, to a claw or mandible having two pointed processes or teeth. Also bicuspidal, bicuspidate.
  • noun One of the premolars or false molars in man, of which there are in the adult two on each side, above and below, between the canines and the true molars. They are the teeth which succeed and replace the milk-molars of the child. Also bicuspis.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Anat.) One of the two double-pointed teeth which intervene between the canines (cuspids) and the molars, on each side of each jaw. See tooth, n.
  • adjective Having two points or prominences; ending in two points; -- said of teeth, leaves, fruit, etc.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Having two points.
  • noun A tooth with two cusps; a premolar tooth. syn.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective having two cusps or points (especially a molar tooth)
  • noun a tooth having two cusps or points; located between the incisors and the molars

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[New Latin bicuspis, bicuspid- : Latin bi-, two; see bi– + Latin cuspis, sharp point.]

Examples

  • Mine was caused by a congenital defect I was born with called a bicuspid aortic valve.

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  • The auriculo-ventricular valve in the left side is composed of two flaps, hence it is called the bicuspid valve; in the right side this valve has three flaps and is called the tricuspid valve.

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  • The left valve has two flaps and is called the bicuspid (or mitral) valve, while the right valve has 3 flaps and is called the tricuspid valve.

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  • Boone will have the operation - technically called bicuspid aortic valve aneurysm surgery - at Stanford University Hospital in California, and he plans to schedule it in the coming days.

    Bats

  • Boone will have the operation - technically called bicuspid aortic valve aneurysm surgery - at Stanford University Hospital in California, and he plans to schedule it in the coming days.

    Bats

  • Boone will have the operation - technically called bicuspid aortic valve aneurysm surgery - at Stanford University Hospital in California, and he plans to schedule it in the coming days.

    Bats

  • Boone will have the operation - technically called bicuspid aortic valve aneurysm surgery - at Stanford University Hospital in California, and he plans to schedule it in the coming days.

    Bats

  • Boone will have the operation - technically called bicuspid aortic valve aneurysm surgery - at Stanford University Hospital in California, and he plans to schedule it in the coming days.

    Bats

  • Boone will have the operation - technically called bicuspid aortic valve aneurysm surgery - at Stanford University Hospital in California, and he plans to schedule it in the coming days.

    Bats

  • The first, or most anterior pre-molar of the lower jaw has one predominant cusp or cone; the second, like both in the upper jaw, is "bicuspid," or bi-tuberculate, as in man.

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Comments

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  • The fox had a rotten bicuspid and unusually bad breath.

    - William Steig, Doctor De Soto

    October 27, 2008

  • "Bill of lading not endorsed", in the abbreviated jargon of railway telegraphers. --US Railway Association, Standard Cipher Code, 1906.

    January 20, 2013