a. and sb. Obs. Also 7 -ant. [ad. L. subtendens, -entem, pr. pple. of subtendĕre to SUBTEND.]

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  A.  adj. That subtends.

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1571.  Digges, Pantom., I. vi. C iij b. In equiangle triangles, al their sides are proportional aswel such as conteyne the equall angles, as also their subtendente sides. Ibid., xx. F ij b. The subtendent staffe or side of the triangle.

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1688.  R. Holme, Armoury, III. iii. 139/2. A Cord, Chord, or Subtendant Line; is a streight Line which joyns to an Arch or Bow by its ends.

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  B.  sb. A subtending line or side.

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1570.  Dee, Math. Pref., 30. Square then, halfe the Subtendent of that watry Superficies.

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1673.  in Rigaud, Corr. Sci. Men (1841), II. 569. A, E, are the subtendants of two arches which together make up 1/2 the circumference.

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