| 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. |