| 单词 |
pilidium |
| 释义 |
‖ pilidium Nat. Hist.|paɪˈlɪdɪəm| [mod.L., a. Gr. πιλίδιον little cap, dim. of πῖλος a felt cap.] 1. Zool. A name given to the cap-shaped larvæ of some species of Nemertean worms, formerly considered as a distinct genus.
1877Huxley Anat. Inv. Anim. xi. 651 The production of the Nemertid larva within its pilidium. 1888Rolleston & Jackson Anim. Life 640 note, The larva of Desor is probably not so primitive a form as the Pilidium. b. A genus of limpets of the family Acmeidæ. 2. Bot. The hemispherical apothecium of certain lichens.
1842in Brande Dict. Sc. etc. |

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