tetragonous, a. Bot.
(tɪˈtrægənəs)
[f. tetragon or late L. tetragōn-us tetragonal + -ous.]
Having four angles; = tetragonal a. 2.
| 1760 J. Lee Introd. Bot. ii. xxii. (1765) 125 Seed, a single one, oblong, often tetragonous. 1870 Hooker Stud. Flora 245 Convolvulus arvensis,..peduncle..4-gonous. 1872 Oliver Elem. Bot. App. 310 [Common Wheat] Inflorescence spicate,..tetragonous. |