rotatoriann.adj.
/ˌrəʊtəˈtɔːrɪən/, U.S. /ˌroʊdəˈtɔriən/ Zoology.
A. n.
A minute or microscopic animal of the class or phylum Rotatoria; (now) spec. a rotifer.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Rotifera > [noun] > member of
rotifer1777
wheel-animal1788
wheel-insect1800
wheel-animalcule1834
rotatory1835
rotator1854
rotatorian1861
wheel-bearer1861
1861 A. Pritchard et al. Hist. Infusoria (ed. 4) ii. 702 This genus is constructed for an African Rotatorian imperfectly observed.
1904 Proc. Amer. Philos. Soc. 43 373 The male Rotatorian..emerges from an egg much smaller than that which produces a female.
1995 Proc. Acad. Nat. Sci. Philadelphia 146 167/1 In Dagestan, larval rudd first eat mainly larva and adult copepods and rotatorians.
B. adj.
Of or relating to the class or phylum Rotatoria. Now rare.
ΚΠ
1861 A. Pritchard et al. Hist. Infusoria (ed. 4) ii. 694 The animal contained within this lorica presents the typical features of the Rotatorian class.
1909 Rep. Brit. Assoc. Advancem. Sci. 509 The Rotatorian fauna of the Dominion [of Canada] therefore remains quite unknown.
1981 Water Res. 15 695 Table 3. Concentrations of total Rotifera and the main rotatorian species between 0-2 m depth.
This is a new entry (OED Third Edition, November 2010; most recently modified version published online March 2022).
<
n.adj.1861