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English definition of “tangent”

tangent

noun [C] (TRIANGLE)    /ˈtæn.dʒənt/ (written abbreviation tan) specialized
(in a triangle that has one angle of 90°) the ratio of the length of the side opposite an angle less than 90° divided by the length of the shorter of the two sides that are next to the angle → Compare cosine, sineDescribing angles, lines and orientations tangential     /tænˈdʒen.ʃəl/ adjective Digressing and being indirect or evasiveMoving in order to avoid contactNot saying much
(Definition of tangent noun (TRIANGLE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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