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1 definition found
 for Trigonometrical
From The Collaborative International Dictionary of English v.0.48 :

  Trigonometric \Trig`o*no*met"ric\, Trigonometrical
  \Trig`o*no*met"ric*al\, [Cf. F. trigonom['e]trique.]
     Of or pertaining to trigonometry; performed by the rules of
     [1913 Webster] --{Trig`o*no*met"ric*al*ly, adv.
     [1913 Webster]
     Trigonometrical curve, a curve one of whose coordinates is
        a trigonometric function of the other.
     Trigonometrical function. See under Function.
     Trigonometrical lines, lines which are employed in solving
        the different cases of plane and spherical trigonometry,
        as sines, tangents, secants, and the like. These lines, or
        the lengths of them, are trigonometrical functions of the
        arcs and angles to which they belong.
     Trigonometrical survey. See under Survey.
        [1913 Webster]

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