† equilateradj.n.
Obsolete.
A. adj.
Having equal sides.
ΘΚΠ
the world > space > shape > symmetry or regularity > [adjective] > having equal sides
equilater1570
equilateral1592
1570 H. Billingsley tr. Euclid Elements Geom. i. f. 4 An equilatre triangle is that, which hath three equall sides.
1589 G. Puttenham Arte Eng. Poesie ii. xi. 83 Of the square or quadrangle equilater.
1621 R. Burton Anat. Melancholy iii. i. iii. i. 520 Faith and Hope, which with this our loue make..an Æquilater Triangle.
1661 S. Partridge Descr. Double Scale Proportion 50 To find the side of an Equilater triangle.
1716 A. de Moivre in Philos. Trans. 1714–16 (Royal Soc.) 29 335 Let A H h be an Equilater Hyperbola.
B. n.
Categories »
a. Geometry. A square or cube.
b. Arithmetic. A square or cube number.
ΘΚΠ
the world > relative properties > number > arithmetic or algebraic operations > [noun] > multiplication > into or by itself > square
quadratec1450
square1557
square number1557
zenzic1557
equilater1614
equilater figurate1614
the world > relative properties > number > arithmetic or algebraic operations > [noun] > multiplication > into or by itself > cube
cubic number1551
cube1557
cube-number1570
equilater1614
triplicate1769
1614 W. Bedwell De Numeris Geometricis i. 4 4 is a figurate equilater, and the side or roote of it is 2.
1636 R. Hartwell in Record's Ground of 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.
1636 R. Hartwell in Record's Ground of Artes 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.
This entry has not yet been fully updated (first published 1891; most recently modified version published online December 2020).
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adj.n.1570