Wheel animal

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Related to Wheel animal: wheel animalcule, Rotifera
(Zool.) any one of numerous species of rotifers having a ciliated disk at the anterior end.

See also: Wheel

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Claire Healy, associate curator of invertebrate biology at the ROM, used the BioBlitz as an opportunity to search for less familiar animals, such as "tiny aquatic rotifers (wheel animals), and parasites that live on or in other animals." She revels in the knowledge that a single individual, such as a turtle or a fish, can actually be home to as many as a dozen other species.