decagonaladj.
/dɪˈkaɡənəl/ Of or pertaining to a decagon; of the form of a decagon; ten-sided.
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the world > space > shape > angularity > specific angular shape > [adjective] > polygonal > ten-sided
decagonal1571
the world > relative properties > number > geometry > shape or figure > [adjective] > two-dimensional > with nine or more sides or angles
decagonal1571
thousand-sided1704
nonagon1754
dodecagonal1854
tridecilateral1882
1571 T. Digges in L. Digges's Geom. Pract.: Pantometria ix. sig. Y j v The decagonall corde of that circle wheron Icosaedron is framed.
1717 G. Berkeley Jrnls. Trav. Italy 19 Jan. in Wks. (1955) VII. 257 What remains is a decagonal building.
a1878 G. G. Scott Lect. Mediæval Archit. (1879) II. 235 Its surrounding wall is not circular, but decagonal.
This entry has not yet been fully updated (first published 1894; most recently modified version published online March 2018).
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adj.1571- in long retinue
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