a. [ L. aequilateralis; aequus equal + latus, lateris, side: cf. F. équilatéral. ] Having all the sides equal; as, an equilateral triangle; an equilateral polygon. [ 1913 Webster ]
Equilateral hyperbola (Geom.), one whose axes are equal. -- Equilateral shell (Zoöl.), one in which a transverse line drawn through the apex of the umbo bisects the valve, or divides it into two equal and symmetrical parts. -- Mutually equilateral, applied to two figures, when every side of the one has its equal among the sides of the other. [ 1913 Webster ]
[ふとうへんさんかっけい;ふとうへんさんかくけい, futouhensankakkei ; futouhensankakukei] (n) scalene (triangle); triangle having three sides of different lengths; inequilateral triangle [Add to Longdo]
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