| 单词 | tangent |
| 释义 | tangent (once / 3886 pages) n A tangent is an entirely different topic or direction. When you want a break from geometry class, you might ask your teacher about his hobby of woodworking, a topic that's always good for a ten-minute tangent. Tangent is mainly a mathematical term, meaning a line or plane that touches a curved surface but doesn't intersect it. The non-mathematical meaning of tangent comes from this sense of barely touching something: when a conversation heads off on a tangent, it's hard to see how or why it came up. When talking about history, someone suddenly brings last night's basketball game? Definitely a tangent. WORD FAMILYtangent: tangency, tangential, tangents+/tangency: tangencies/tangential: tangentially USAGE EXAMPLESThe one who continually went off on reckless and damaging tangents during campaign speeches? Economist(Nov 10, 2016) But Mr. Thompson kept going off on tangents. New York Times(Nov 05, 2016) That’s the tangent I am on right now.” The New Yorker(Nov 03, 2016) 1n a straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point Hyper straight line a line traced by a point traveling in a constant direction; a line of zero curvature 2n ratio of the opposite to the adjacent side of a right-angled triangle Syn|Hyper tan circular function, trigonometric function function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle |
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