| 单词 | tangents | 
| 释义 | tangent1 of 2noun  tan·gent  ˈtan-jənt  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   tangent2 of 2 adjective1  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 tangents nounas in asidesa departure from the subject under consideration in the middle of her description of her dog's symptoms, she went off on a tangent about its cute behavior Synonyms & Similar Words Relevance 
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