Zool. [Cf. prec. and -ID1.] An individual of the Vorticellidæ, a family of sedentary infusorians.
1865. Intell. Observ., No. 38. 101. The jerk of a Vorticellid.
1888. Rolleston & Jackson, Anim. Life, 837. Encysted Vorticellids with many nuclei have been observed.
Hence Vorticellidan a. rare.
1865. H. James-Clark, in Mem. Boston Soc. Nat. Hist., I. 127. This singular appendage of the Vorticellidan group.
1880. Saville Kent, Infusoria, I. 68. Members of the Vorticellidan family.