cusp (redirected from semilunar cusp)

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.

Cusps of the atrioventricular (tricuspid) valve.

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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).

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cusp (ksp)

n.

1. A pointed or rounded projection on the chewing surface of a tooth.

2. A triangular fold or flap of a heart valve.

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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.

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cusp (kusp),

n a notably pointed or rounded eminence on or near the masticating surface of a tooth.

cusp, angle,

n See angle, cusp.

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,

n See restoration of cusps.

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.

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cusp

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

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semilunar cusp

any of the semilunar segments of the aortic valve or the pulmonary valve.

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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