Definition, Meaning & Synonyms

secant

noun
/ˈsiː.kænt/
Definition
A secant is a line that intersects a curve at two or more points.
Examples
  • The secant of an angle in a right triangle is the ratio of the hypotenuse to the adjacent side.
  • When we draw a secant line to a circle, it touches the circle at two distinct points.
  • The secant function can be calculated using a calculator that has trigonometric functions.
Meaning
In mathematics, the term ‘secant’ can also refer to a specific trigonometric function that is the reciprocal of the cosine function.
Synonyms
  • None
  • Secant line
  • Trigonometric secant