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|Noun||1.||curved shape - the trace of a point whose direction of motion changes|
bell-shaped curve, Gaussian curve, Gaussian shape, normal curve - a symmetrical curve representing the normal distribution
meander - a bend or curve, as in a stream or river
line - a length (straight or curved) without breadth or thickness; the trace of a moving point
closed curve - a curve (such as a circle) having no endpoints
S-shape - a double curve resembling the letter S
catenary - the curve theoretically assumed by a perfectly flexible and inextensible cord of uniform density and cross section hanging freely from two fixed points
Cupid's bow - the double curve of the upper lip when considered to resemble Cupid's bow
extrados - the exterior curve of an arch
gooseneck - something in a thin curved form (like the neck of a goose)
intrados - the interior curve of an arch
bend, turn, crook, twist - a circular segment of a curve; "a bend in the road"; "a crook in the path"
envelope - a curve that is tangent to each of a family of curves
arc - a continuous portion of a circle
crenation, crenature, crenel, crenelle, scallop - one of a series of rounded projections (or the notches between them) formed by curves along an edge (as the edge of a leaf or piece of cloth or the margin of a shell or a shriveled red blood cell observed in a hypertonic solution etc.)
spiral - a plane curve traced by a point circling about the center but at increasing distances from the center
helix, spiral - a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
perversion - a curve that reverses the direction of something; "the tendrils of the plant exhibited perversion"; "perversion also shows up in kinky telephone cords"
arch - a curved shape in the vertical plane that spans an opening
crescent - any shape resembling the curved shape of the moon in its first or last quarters
quadric, quadric surface - a curve or surface whose equation (in Cartesian coordinates) is of the second degree