Dictionary
cusp
noun \ˈkəsp\
: a pointed end or part where two curves meet
Full Definition of CUSP
: 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
— cus·pate \ˈkəs-ˌpāt, -pət\ adjective
— cusped \ˈkəspt\ adjective
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Illustration of CUSP
Origin of CUSP
Latin cuspis point
First Known Use: 1585
CUSP Defined for Kids
cusp
noun \ˈkəsp\
Definition of CUSP for Kids
: a point or pointed end <the cusp of a tooth>
Medical Dictionary
cusp
noun \ˈkəsp\
Medical Definition of CUSP
1
: a point on the grinding surface of a tooth
2
: a fold or flap of a cardiac valve
—cus·pal \ˈkəs-pəl\ adjective
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