Adjacent Words

Cusp definitions

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Webster's 1828 Dictionary

CUSP, n. [L., a point.] The point or horn of the moon or other luminary.

WordNet (r) 3.0 (2005)

n
1: point formed by two intersecting arcs (as from the intrados of a Gothic arch)
2: a thin triangular flap of a heart valve [syn: cusp, leaflet]
3: small elevation on the grinding surface of a tooth

Merriam Webster's

noun Etymology: Latin cuspis point Date: 1585 point, apex: as a. a point of transition (as from one historical period to the next) ; turning point; also edge, verge <on the cusp of stardom> b. either horn of a crescent moon c. a fixed point on a mathematical curve at which a point tracing the curve would exactly reverse its direction of motion d. an ornamental pointed projection formed by or arising from the intersection of two arcs or foils e. (1) a point on the grinding surface of a tooth (2) a fold or flap of a cardiac valve • cuspate adjective • cusped adjective

Oxford Reference Dictionary

n. 1 an apex or peak. 2 the horn of a crescent moon etc. 3 Astrol. the initial point of a house. 4 Archit. a projecting point between small arcs in Gothic tracery. 5 Geom. the point at which two arcs meet from the same direction terminating with a common tangent. 6 Bot. a pointed end, esp. of a leaf. 7 a cone-shaped prominence on the surface of a tooth esp. a molar or premolar. 8 a pocket or fold in a valve of the heart. Derivatives: cuspate adj. cusped adj. cuspidal adj. Etymology: L cuspis, -idis point, apex

Webster's 1913 Dictionary

Cusp Cusp (k?sp), n. [L. cuspis, -idis, point, pointed end.] 1. (Arch.) 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. (Astron) The point or horn of the crescent moon or other crescent-shaped luminary. 4. (Math.) A multiple point of a curve at which two or more branches of the curve have a common tangent. 5. (Anat.) A prominence or point, especially on the crown of a tooth. 6. (Bot.) A sharp and rigid point.

Webster's 1913 Dictionary

Cusp Cusp, v. t. [imp. & p. p. Cusped (k?spt); p. pr. & vb. n. Cusping.] To furnish with a cusp or cusps.

Collin's Cobuild Dictionary

If you say that someone or something is on the cusp, you mean they are between two states, or are about to be in a particular state. I am sitting on the cusp of middle age... PHRASE: PHR after v, v-link PHR

Soule's Dictionary of English Synonyms

n. Point, angle, horn.