单词 | trigonia |
释义 | ‖ trigonia Conch.|traɪˈgəʊnɪə| [mod.L. generic name, f. as trigon + -ia1.] A genus of bivalve molluscs having a shell of triangular form.
1837Encycl. Brit. (ed. 7) XV. 343/1 The trigonia now forms along with castalia, the small family of Trigonées. 1851Woodward Mollusca i. 11 The cockle and trigonia have the foot bent, enabling them to make short leaps. 1883Fisheries Exhib. Catal. (ed. 4) 176 Collection of Trigonias..exhibited by Dr. J. C. Cox, F.L.S. of Sydney. Hence trigoniacean |traɪgəʊnɪˈeɪʃ(ɪ)ən|, (a) adj. belonging to the group Trigoniacea of bivalve molluscs, typified by the genus Trigonia; (b) n. a mollusc of this group. In recent Dicts. |

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