Definition: ratio of the hypotenuse to the adjacent side of a right-angled triangle
Similar words: circular function, trigonometric function
Definition: function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle
Synonyms: secant
Definition: a straight line that intersects a curve at two or more points
Similar words: straight line
Definition: a line traced by a point traveling in a constant direction; a line of zero curvature
Usage: the shortest distance between two points is a straight line