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 ?
Significant pannus led to valve cusps immobilization in 22 (55.
7%) of these 19 patients had immobilization of all 3 valve cusps.
Most likely, the prominent pulp horns that project under the cusps of the taurodont tooth cause the enlargement in spite of the normal size of the dentine.
Pulpal tissue in bilateral talon cusps of primary central incisors: report of a case.
The domain of generative instruction is academic skills, but it is included here because of its close relation to behavioral cusps and cumulative hierarchical learning.
Behavioral cusps and basic behavioral repertoires and cumulative-hierarchical learning are probably broadest because repertoires that hinder later behavior development or that produce later socially undesirable repertoires are also included.
The lingual face is rather convex with a large protuberance at the base of the cusp that forms nearly a 90[degrees] angle with the crown.
Teeth of lateral and posterior row groups are asymmetrical, lower crowned, and with a smaller, distally inclined cusp.
4E indicates four equally sized cusps; 3E1U, three larger equal cusps and one smaller cusp; MR, mitral regurgitation; AR, aortic regurgitation.
The sail cusp is a single-piece composite fairing attached to the hull and lower leading edge of the submarine sail (the vertical fin on top of the hull).
This delivery represents the first production composite sail cusp that is a lightweight, low maintenance alternative to steel that helps reduce the acquisition cost for Virginia Class submarines," said Marc Duvall, president, Goodrich Aerostructures.
Anterior legs pale brown and more robust, posterior legs darker brown; metatarsi and tarsi covered with dense scopulae, remaining leg segments covered in pale fine setae; leg spines and cusps present.