decagonal, a.
(dɪˈkægənəl)
[f. med.L. decagōn-um + -al1.]
Of or pertaining to a decagon; of the form of a decagon; ten-sided.
| 1571 Digges Pantom. iv. ix. Y j b, The decagonall corde of that circle wheron Icosaedron is framed. 1717 Berkeley Tour in Italy Wks. 1871 IV. 526 What remains is a decagonal building. 1879 Sir G. Scott Lect. Archit. II. 235 Its surrounding wall is not circular, but decagonal. |