Rostel see rostellum

rostelliform a. [L. rostellum, small beak; forma, shape] Shaped like a rostellum.

rostellum, rostel n. [L. rostellum, small beak] 1. A small beak or rostrum. 2. (ARTHRO: Insecta) The tubular piercing and sucking mouth parts. 3. (BRACHIO) Low projection between anterior muscle scars to which internal oblique muscles are attached. 4. (platy: Cestoda) A rounded prominence on the anterior end of the scolex, often furnished with retractile spines or hooks; sometimes referred to as an aclid organ. 5. (PLATY: Trematoda) An anterior holdfast; rhynchus. rostellar, rostellate a.

rostrad adv. [L. rostrum, beak] Toward the anterior end; cephalad; toward the rostrum when anterior.

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