• WordNet 3.6
    • adj tricuspid having three cusps or points (especially a molar tooth) "tricuspid molar","tricuspid valve"
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Webster's Revised Unabridged Dictionary
    • Tricuspid Having three cusps, or points; tricuspidate; as, a tricuspid molar.
    • Tricuspid (Anat) Of or pertaining to the tricuspid valves; as, tricuspid obstruction.
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Century Dictionary and Cyclopedia
    • tricuspid Having three cusps or points: specifically noting the valvular arrangement in the right ventricle of the heart, guarding the auriculoventricular orifice, in distinction from the bicuspid (or mitral) valves in the left ventricle. This valve consists of three segments, or there are three valves, of a triangular or trapezoidal shape, each formed by a fold of the lining membrane of the heart, and strengthened by a layer of fibrous tissue which may also contain contractile fibers. See cut II. under heart.
    • n tricuspid A tricuspid valve of the heart.
    • n tricuspid A tricuspid tooth: correlated with bicuspid and multicuspid.
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Chambers's Twentieth Century Dictionary
    • adj Tricuspid trī-kus′pid having three cusps or points:
    • adj Tricuspid trī-kus′pid (anat.) denoting certain of the teeth, and the valve of the right ventricle of the heart
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Webster's Revised Unabridged Dictionary
L. tricuspis, -idis,; tri-,see Tri-) + cuspis, a point: cf. F. tricuspide,
Chambers's Twentieth Century Dictionary
L. tricuspis, tricuspidistri, tris, thrice, cuspis, a point.


In literature:

The tricuspid valve at once closes, and blocks the way backward.
"A Practical Physiology" by Albert F. Blaisdell
Mitral and tricuspid valvular lesions if the patient exerts himself.
"Aids to Forensic Medicine and Toxicology" by W. G. Aitchison Robertson
The tricuspid and mitral valves were thickened, and exhibiting minute granulations on their surface.
"An Investigation into the Nature of Black Phthisis" by Archibald Makellar
The tricuspid valves were in a sound state.
"Cases of Organic Diseases of the Heart" by John Collins Warren
C, The tricuspid valves.
"A Treatise on Anatomy, Physiology, and Hygiene (Revised Edition)" by Calvin Cutter
In the mesozoic period certain animals with tricuspid teeth occur.
"Degeneracy" by Eugene S. Talbot
The last upper molar is tricuspid.
"The Cambridge Natural History, Vol X., Mammalia" by Frank Evers Beddard

In news:

Edwards Lifesciences Launches Physio Tricuspid Heart Valve Repair Ring.
There are four valves in the heart: aortic valve, mitral valve, tricuspid valve, and pulmonary valve.
Lockie's 20-week ultrasound showed her son was missing his tricuspid valve, a condition called tricuspid atresia-hypoplastic right heart syndrome, in which the structures on that side of the heart are undeveloped.