| 单词 |
mesotrocha |
| 释义 |
‖ mesotrocha, n. pl.|mɛˈsɒtrəkə| Also -æ. [mod.L., f. Gr. µέσο-ς middle + τροχός wheel, rim.] Ciliated larvæ of polychætous annelids in which one or more rows of cilia encircle the middle of the body. Hence meˈsotrochal a., also meˈsotrochous a. (in recent Dicts.), having a ciliated ring round the middle.
1877Huxley Anat. Inv. Anim. v. 243 Mesotrocha. Ibid. 248 A mesotrochal Annelidan larva. 1888Rolleston & Jackson Anim. Life 606 Mesotrochae. |

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