| 释义 |
rotalian, n. and a. Zool.|rəʊˈteɪlɪən|
[f. mod.L. Rotalia (Lamarck, 1809), neut. pl. of late L. rotālis: see prec.]
A. n. A foraminifer of the genus Rotalia.
1869Monthly Microsc. Jrnl. 303 If one of the simple Rotalians were thickened and drawn out at the umbilici. 1879Carpenter in Encycl. Brit. IX. 380/2 The..spiral mode of growth differs entirely from that of ordinary Rotalians.
B. adj. Of or belonging to the genus Rotalia.
1862Carpenter Micros. (ed. 3) 517 The two great series which may be designated (after the leading forms of each) as the Textularian and the Rotalian. 1879― in Encycl. Brit. IX. 380/1 This intermediate skeleton..completely envelops the original rotalian shell. |