| 释义 |
WordReference Random House Unabridged Dictionary of American English © 2024se•cant (sē′kant, -kənt),USA pronunciation n. - Mathematics[Geom.]an intersecting line, esp. one intersecting a curve at two or more points.
- Mathematics[Trig.]
- (in a right triangle) the ratio of the hypotenuse to the side adjacent to a given angle.
- (originally) a line from the center of a circle through one extremity of an arc to the tangent from the other extremity.
- the ratio of the length of this line to that of the radius of the circle;
the reciprocal of the cosine of a given angle or arc. Abbr.: sec
adj. - Mathematicscutting or intersecting, as one line or surface in relation to another.
- Latin secant- (stem of secāns, present participle of secāre to cut), equivalent. to sec- verb stem (see saw1) + -ant- -ant
- 1585–95
Collins Concise English Dictionary © HarperCollins Publishers:: secant /ˈsiːkənt/ n - (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: sec - a line that intersects a curve
Etymology: 16th Century: from Latin secāre to cut |