Bot. and Zool. [ad. L. corōnula, dim. of corōna crown. The L. form is sometimes used.]
1. Bot. An appendage like a small crown or coronet surmounting a seed, etc.: cf. CORONA 7 a.
1806. Gregory, Dict. Acts & Sc., I. 255. The coronula is … a small sort of calyx adhering to the seed, like a little crown.
1866. Treas. Bot., Coronule, the small calyx-like body which crowns the nucule of Chara. [Called CROWN in transl. of Sachs.]
1881. Groves, in Jrnl. Bot., X. 2. The small size and shortness of the nucleus and coronula.
2. Zool. A kind of acorn-shell or barnacle of the genus Coronula of Cirripeds; parasitic on Cetacea.
1836. Todd, Cycl. Anat., I. 686/1. All the Balanids—with the exception of the Coronules—have calcareous bases.
1876. Beneden’s Anim. Parasites, 57. Eschricht has in vain offered a reward to him who would send him coronulæ still attached to the umbilical cord.
