Rō'ti-fer, n.

noun

(Synop., §130), n. [N. Lat. rotifer, from Lat. rota, a wheel, and ferre, to bear, Fr. rotifère.] (Zoöl.) One of a group of microscopic crustaceans, having no limbs, and moving by means of rows of cilia about the head or the anterior extremity.

The illustration shows a rotifer, *Brachionus patulus*, in two positions. — Rotifers. *Brachionus patulus in two positions.*