cusp
NounUS[kuhsp]/kʌsp/1 syllable
Synonyms:
leaflet
Open English WordNet
Noun (3)
- point formed by two intersecting arcs (as from the intrados of a Gothic arch)Type of point
- a thin triangular flap of a heart valveSynonyms: leafletType of flapPart of heart valve, cardiac valve
- small elevation on the grinding surface of a toothType of point, tipPart of tooth
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perniciousadjective
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Webster's Dictionary (1913)
Cusp (kŭsp), noun
Origin: L. cuspis, -idis, point, pointed end.
1. Architecture A triangular protection from the intrados of an arch, or from an inner curve of tracery.
2. Astrol. The beginning or first entrance of any house in the calculations of nativities, etc.
3. Astronomy The point or horn of the crescent moon or other crescent-shaped luminary.
4. Mathematics A multiple point of a curve at which two or more branches of the curve have a common tangent.
5. Anatomy A prominence or point, especially on the crown of a tooth.
6. Botany A sharp and rigid point.
Cusp transitive verb [past tense & past participle Cusped (kŭspt); present participle & verbal noun Cusping.]
To furnish with a cusp or cusps.
Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54