tangent

n. line or curve that touches but does not intersect with another line or curve (Geometry)

adj. touching at a single point (Geometry); irrelevant, divergent

For other uses, see tangent (disambiguation). In mathematics, the word tangent has two distinct but etymologically-related meanings: one in geometry and one in trigonometry.
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Noun
1. a straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point
(hypernym) straight line
2. ratio of the opposite to the adjacent side of a right-angled triangle
(synonym) tan
(hypernym) trigonometric function, circular function

adj. tangent, pertaining to a tangent, touching at a single point (Geometry); irrelevant, divergent

adj. tangent, touching at a single point (Geometry); irrelevant, divergent