| 单词 |
orthid |
| 释义 |
orthid|ˈɔːθɪd| [f. mod.L. Orthidæ, f. Orthis, f. Gr. ὀρθός straight: see -id2.] A member of the Orthidæ, or genus Orthis, of fossil bivalves.
1873Dawson Earth & Man iii. 43 Lamp-shells of another type..the Orthids, these have the valves hinged along a straight line, in the middle of which is a notch for the peduncle. |

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