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tangent

1 of 2

noun

tan·​gent ˈtan-jənt How to pronounce tangent (audio)
1
: an abrupt change of course : digression
the speaker went off on a tangent
2
a
: the trigonometric function that for an acute angle is the ratio between the leg opposite to the angle when it is considered part of a right triangle and the leg adjacent
b
: a trigonometric function that is equal to the sine divided by the cosine for all real numbers θ for which the cosine is not equal to zero and is exactly equal to the tangent of an angle of measure θ in radians
3
: a line that is tangent
specifically : a straight line that is the limiting position of a secant of a curve through a fixed point and a variable point on the curve as the variable point approaches the fixed point
4
: a small upright flat-ended metal pin at the inner end of a clavichord key that strikes the string to produce the tone

tangent

2 of 2

adjective

1
a
: meeting a curve or surface in a single point if a sufficiently small interval is considered
straight line tangent to a curve
b(1)
: having a common tangent line at a point
tangent curves
(2)
: having a common tangent plane at a point
tangent surfaces
2
: diverging from an original purpose or course : irrelevant
tangent remarks

Example Sentences

Word History


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