bi·​cus·​pid | \(ˌ)bī-ˈkə-spəd \

Definition of bicuspid 

(Entry 1 of 2)

: having or ending in two points bicuspid teeth an abnormal bicuspid aortic valve



Definition of bicuspid (Entry 2 of 2)

: a human premolar tooth — see tooth illustration

Examples of bicuspid in a Sentence

Recent Examples on the Web: Adjective

Dampf, who was born with a bicuspid aortic valve disease, recently underwent open heart surgery, but was able to return for the tournament. Jared Silberkleit,, "Westbrook's Amendola-Marx Win Class S Doubles Title; East Catholic Team Champion," 1 June 2017

Recent Examples on the Web: Noun

Since the cardiac issue can be known to be hereditary, Mary Toland took her children to be tested at Boston Children’s Hospital, where Owen, the oldest of four, was found to have been born with a leaking bicuspid aortic valve., "Lincoln-Sudbury’s Owen Toland exemplifies the heart and soul of lacrosse," 5 June 2018 The document alleges that Paxton consulted Khoynezhad, Cedars-Sinai and other defendants in connection with cardiac conditions that included bicuspid aortic valve and aortic aneurysm. Robert Philpot, star-telegram, "Bill Paxton's family files suit against hospital, surgeon | Fort Worth Star-Telegram," 12 Feb. 2018 Hockey players have teeth knocked out all the time–those jokes about bicuspids being swept up in the Zamboni filter are no jokes–and most return to action almost immediately. Mark Purdy, The Mercury News, "Purdy: Logan Couture’s mouth looks like a collapsed mine," 11 Apr. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bicuspid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of bicuspid


1752, in the meaning defined above


1816, in the meaning defined above

History and Etymology for bicuspid


New Latin bicuspid-, bicuspis, from bi- + Latin cuspid-, cuspis point

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Time Traveler for bicuspid

The first known use of bicuspid was in 1752

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More Definitions for bicuspid


bi·​cus·​pid | \bī-ˈkə-spəd \

Kids Definition of bicuspid

: either of the two teeth with double points on each side of each jaw of a person


bi·​cus·​pid | \(ˈ)bī-ˈkəs-pəd \

Medical Definition of bicuspid 

(Entry 1 of 2)

: having or ending in two points bicuspid teeth



Medical Definition of bicuspid (Entry 2 of 2)

: either of the two double-pointed teeth that in humans are situated between the canines and the molars on each side of each jaw : premolar sense 1

More from Merriam-Webster on bicuspid

Spanish Central: Translation of bicuspid

Nglish: Translation of bicuspid for Spanish Speakers

Comments on bicuspid

What made you want to look up bicuspid? Please tell us where you read or heard it (including the quote, if possible).


noxious or harmful

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