# Definition of 'secant'

noun

1.

(of an angle) a trigonometric function that in a right-angled triangle is the ratio of the length of the hypotenuse to that of the adjacent side; the reciprocal of cosine

. Abbreviation: sec2.

a line that intersects a curve

Collins English Dictionary. Copyright © HarperCollins Publishers

Derived forms

adverb

Word origin of 'secant'

adjective

1.

cutting; intersecting

noun

3. Trigonometry
Mathematics

the reciprocal of the cosine

; specif.,
b.

an equivalent, positive or negative ratio for certain related angles (Ex.: the secant of 57° or 303° is 1.8362, of 123° or 237° is -1.8362) or real numbers representing radians (Ex.: the secant of .9948 radians (57°) is 1.8362)

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.

## Word Lists

## Trends of 'secant'

Used Rarely. secant is in the lower 50% of commonly used words in the Collins dictionary

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## Nearby words of 'secant'

## Related Terms of 'secant'

## Source

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