Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


Having only one cusp. Used of a tooth.
A unicuspid 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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.unicuspid - having a single cusp or point; "a unicuspid tooth"
angulate, angular - having angles or an angular shape
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Other causes include damage to the heart valves due to diseases like rheumatic heart disease, or congenital heart defects like bicuspid aortic valve, misshapen tricuspid aortic valve, or a unicuspid valve.
Frequency by decades of unicuspid, bicuspid, and tricuspid aortic valves in adults having isolated aortic valve replacement for aortic stenosis, with or without associated aortic regurgitation.
Shrews follow, with a clear illustration to show the absurdly small fourth unicuspid tooth in the upper jaw that distinguishes the genus Suncus (3 Borneo species) from Crocidura (another 3 species).
Unicuspid aortic valve (UAV) is a rare congenital anomaly with an estimated incidence of 0.025% found by echocardiography and 5.5% found during aortic valve replacement.
Species Trunk myomeres Circumoral teeth American Brook Lamprey 64-75 Unicuspid Northern Brook Lamprey 47-56 Unicuspid Silver Lamprey 47-55 Unicuspid Chestnut Lamprey 49-56 Bicuspid Species Dorsal fin Lateral line pores American Brook Lamprey Separate None Northern Brook Lamprey Connected None Silver Lamprey Connected Black Chestnut Lamprey Connected Black Table 2.--Lampreys collected and preserved by biologists of the City of Elkhart Public Works and Utilities during 1998-2012.
It has a long, slender, and unicuspid upper incisor in each side and six lower incisors; the four median are broad tricuspids, the outer ones are unicuspid, exceedingly minute (Thomas, 1892), less than 1/20th as large as first or second incisors, nearly concealed beneath cingulum of canine (Miller, 1907).
Ten to 12 scales between the dorsal fin bases; anal fin origin posterior to a vertical through posterior end (insertion) of the first (spinous) dorsal fin base; teeth in multiple rows with single points (unicuspid) at all sizes ...
Shrew unicuspid variation coupled with adult external measurements was sufficient to accurately identify most species (MacDonald and Cook 2009).
Risk factors include smoking, hypertension, atherosclerosis, bicuspid or unicuspid aortic valves, and genetic disorders.
Moreover m1 with less reduced talonid and sometime with metaconid in Adcrocuta but with a rudimentary talonid, unicuspid and without metaconid in Percrocuta are the characteristics of these genera.