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Having only one cusp. Used of a tooth.
A unicuspid tooth.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.unicuspid - having a single cusp or point; "a unicuspid tooth"
angulate, angular - having angles or an angular shape
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.
Unicuspid aortic valve (UAV) is a rare congenital anomaly with an estimated incidence of 0.
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.
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).
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.
Etnier and Starnes (1993) characterized the Silver Lamprey as having 46-55 trunk myomeres (usually 49-52), an undivided dorsal fin, the inner lateral (circumoral) teeth unicuspid and the transverse lingual lamina bilobed.