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† equiˈlater, a. and n. Obs.
Also 6 equilatre, 7 æquilater.
[ad. Fr. equilatere, ad. late L. æquilater-us, f. æqui- (see equi-) + latus, later-is side.]
A. adj. Having equal sides.
1570Billingsley Euclid i. def. 24 An equilatre triangle is that, which hath three equall sides. 1589Puttenham Eng. Poesie ii. xi. (Arb.) 113 Of the square or quadrangle equilater. 1621Burton Anat. Mel. iii. i. iii. i. 520 Faith and Hope, which with this our loue make..an æquilater Triangle. 1661S. Partridge Double Scale Proport. 50 To find the side of an Equilater triangle. 1715De Moivre in Phil. Trans. XXIX. 335 Let A H h be an Equilater Hyperbola.
B. n.
a. Geom. A square or cube.
b. Arith. A square or cube number.
1614T. Bedwell Nat. Geom. Numbers i. 4, 4 is a figurate equilater, and the side or roote of it is 2. 1636Hartwell in Record Gr. Artes 560 An æquilater plaine is a number made by two equall sides, or by any number multiplyed by it selfe. It is vulgarly called a square or quadrat. Ibid. 570 An Equilater, is a number made by three equall sides, or by any number multiplyed by it selfe, and that product againe by the foresaid number. It is called an Equilater..or Cube. |