rostellum

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rostellum

 [ros-tel´um]
a small protuberance or beak, especially the fleshy protuberance of the scolex (mouth) of a tapeworm, which may or may not bear hooks.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ros·tel·lum

(ros-tel'ŭm),
The anterior fixed or invertible portion of the scolex of a tapeworm, frequently provided with a row (or several rows) of hooks.
[L. dim. of rostrum, a beak]
Farlex Partner Medical Dictionary © Farlex 2012

rostellum

(rŏ-stĕl′əm)
n. pl. rostella (rŏ-stĕl′ə)
A small beaklike part, such as a projection on the stigma of an orchid or the hooked projection on the head of a tapeworm.

ros·tel′lar adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

ros·tel·lum

(ros-tel'ŭm)
The anterior fixed or invertible portion of the scolex of a tapeworm, frequently provided with a row (or several rows) of hooks.
[L. dim. of rostrum, a beak]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

rostellum

  1. a protruding, beak-like structure in some insects.
  2. the protrusion carrying the hooks on the SCOLEX of tapeworms.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005