straight line a line traced by a point traveling in a constant direction; a line of zero curvature; "the shortest distance between two points is a straight line"
line acting in conformity; "in line with"; "he got out of line"; "toe the line"
catenary the curve theoretically assumed by a perfectly flexible and inextensible cord of uniform density and cross section hanging freely from two fixed points
curve -
A grading system based on the scale of performance of a group used to normalize a right-skewed grade distribution with more lower scores into a bell curve, so that more can receive higher grades, regardless of their actual knowledge of the subject.
A curve is, generally speaking, an object similar to a line (geometry) but which is not required to be straight. Often curves in two-dimensional or three-dimensional Euclidean space are of interest. Different disciplines within mathematics have given the term different meanings depending on the area of study, so the precise meaning depends on context.
OmegaWiki Dictionary
Ω
curve A term indicating the curvature of an arc.
curve Set of points that form an one-dimensional and continuous object.