a. Zool. [f. Gr. σωρός heap: cf. MONOTROCHOUS a.] Of rotifers: (see quot.).
a. 1843. Encycl. Metrop. (1845), VII. 266/1. The Wheel Organs are either Monotrochous,… or the ring is divided or manifold, as in the Sorotrochous Infusories. Ibid. Two subdivisions of the Sorotrochous are also observed.
