inequilateral, a.
(ɪniːkwɪˈlætərəl)
[f. in-3 + equilateral. Cf. F. inéquilatéral.]
Having unequal sides; unequal-sided.
inequilateral shell: one in which a transverse line drawn through the apex of the umbo divides the valve into two unequal and unsymmetrical parts.
| 1662 J. Bargrave Pope Alex. VII (1867) 123 Several rude pieces of mountain chrystall..amongst which there is one..sexangular, inaequilateral, cylindrical, pyramidical. 1830 Brewster Edin. Cycl. VII. i. 91/2 Shell transverse, inequilateral, inequivalved. 1854 Woodward Mollusca ii. 246 The Bivalves are all more or less inequilateral, the anterior being usually much shorter than the posterior side. 1880 Gray Struct. Bot. iii. iv. 106 Inæquilateral Leaves, being unsymmetrical by the much greater development of one side... This is illustrated in the whole genus Begonia. |
So † inequilater a. [cf. F. inéquilatère], † iˌnequiˈlaterous a. = prec.
| 1614 T. Bedwell Nat. Geom. Numbers i. 7 An inequilater parallelogramme. 1855 Mayne, Inequilaterous. |