释义 |
orbitoid|ˈɔːbɪtɔɪd| [f. mod.L. orbitoīdes, f. orbita orbit n.; see -oid.] The flat round fossil shell of a Foraminifer of the genus Orbitoides, occurring in tertiary limestones in N. America, etc.
1885Amer. Jrnl. Sc. XXX. 70, I found..a small specimen of an Orbitoid. |