cusp

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cusp

 [kusp]
a pointed or rounded projection, such as on the crown of a tooth, or a segment of a cardiac valve. See also valvula.
Carabelli cusp an accessory fifth cusp on the lingual surface of many maxillary first molars; it may be unilateral or bilateral and varies in size from person to person.
semilunar cusp any of the semilunar segments of the aortic valve (having posterior, right, and left cusps) or the pulmonary valve (having anterior, right, and left cusps).

cusp

(kŭsp), [TA]
1. In dentistry, a conic elevation arising on the surface of a tooth from an independent calcification center.
See also: dental tubercle.
2. A leaflet of one of the heart's valves.
Synonym(s): cuspis [TA]
[L. cuspis, point]

cusp

(kusp) a pointed or rounded projection, such as on the crown of a tooth, or one of the triangular segments of a cardiac valve.
Enlarge picture
Cusps of the atrioventricular (tricuspid) valve.

semilunar cusp  any of the semilunar segments of the aortic valve (having posterior, right, and left cusps) or the pulmonary valve (having anterior, right, and left cusps).

cusp

(kŭsp)
n.
Anatomy
a. A pointed or rounded projection on the chewing surface of a tooth.
b. A triangular fold or flap of a heart valve.

cusp

Etymology: L, cuspis, point
1 a sharp projection or a rounded eminence that rises from the chewing surface of a tooth, such as the two pyramidal cusps that arise from the premolars.
2 any one of the small flaps on the valves of the heart, as the ventral, dorsal, and medial cusps of the right atrioventricular valve.

cusp

A rigid, sharp point, especially on a leaf Cardiology One of the triangular segments of the pulmonic or aortic valve which opens and closes with the flow of blood

cusp

(kŭsp) [TA]
1. dentistry A conic elevation arising on the surface of a tooth from an independent calcification center.
2. A leaflet of a cardiac valve.
Synonym(s): cuspis [TA] .
[L. cuspis, point]

cusp

A projecting point.

cusp

one of a series of projections on the biting surface of a molar tooth in mammals.

cusp

(kŭsp) [TA]
In dentistry, a conic elevation arising on the surface of a tooth from an independent calcification center.
See also: dental tubercle
Synonym(s): cuspis [TA] .
[L. cuspis, point]

cusp (kusp),

n a notably pointed or rounded eminence on or near the masticating surface of a tooth.
cusp, angle,
cusp-fossa relations
n.pl the organic relations between a stamp cusp and its fossa.
cusp height,
n the shortest distance between the deepest part of the central fossa of a posterior tooth and a line connecting the points of the cusps of the tooth.
cusp, shoeing,
cusp, talon,
n an extra well-defined cusp that may be found on the lingual surfaces of the anterior teeth.
cusp tips,
n the points on the occlusal surface of the molars, premolars, or canines that are used for tearing or chewing.

cusp

a pointed or rounded projection, such as on the crown of a tooth, or a segment of a cardiac valve.

semilunar cusp
any of the semilunar segments of the aortic valve or the pulmonary valve.
References in periodicals archive ?
Among the topics are the classifying space and cohomology of Thompson's sporadic simple group, the Schur indices of cuspidal unipotent characters, analyzing ovals in finite projective planes using the representation theory of the symmetric group, and regular orbits of induced modules of finite groups.
The observations made were of a routine nature: for example, up till around dichotomy the southern cuspidal area was appreciably brighter than the northern one to the Director and to several other observers.
The cuspidal areas appeared darker, particularly the southern one.