| 释义 |
amphidisc Zool.|ˈæmfɪdɪsk|
[f. Gr. ἀµϕί on both sides + δίσκος a round plate.]
Peculiar asteroid spicules, resembling two toothed wheels united by an axle, which form a layer surrounding the gemmules of sponges. (Nicholson.)
1867J. Hogg Microsc. ii. ii. 389 Remains of the dead sponge, empty gemmule-cases with their amphidiscs. 1877Huxley Anat. Inv. An. iii. 118 Nothing is left but the envelope of keratose, with imbedded amphidisks, disposed perpendicularly to its surface. |