from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. A taxonomic phylum within the superphylum Protostomia — the rotifers, traditionally known informally as wheel animalcules because of their partly circular mouthparts fringed with continuously whirling cilia.
from the GNU version of the Collaborative International Dictionary of English
- n. An order of minute worms which usually have one or two groups of vibrating cilia on the head, which, when in motion, often give an appearance of rapidly revolving wheels. The species are very numerous in fresh waters, and are very diversified in form and habits.
from The Century Dictionary and Cyclopedia
- A class of animalcules, usually classified with or near the lowest worms, distinguished by their circles of cilia, sometimes single, sometimes double, which through the microscope appear like revolving wheels, whence they have been called wheel-animalcules and Rotatoria.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a phylum including: rotifers
From Latin rota ("wheel") + ferō ("I bear"). (Wiktionary)