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rostellum

[ro-stel-uh m]
noun, plural ros·tel·la [ro-stel-uh] /rɒˈstɛl ə/.
  1. Biology. any small, beaklike process.
  2. Botany. a beaklike modification of the stigma in many orchids.
  3. Zoology.
    1. a projecting part of the scolex in certain tapeworms.
    2. a part of the mouth in many insects, designed for sucking.
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Origin of rostellum

1750–60; < New Latin; Latin: little beak, snout, diminutive of rōstrum snout (see rostrum); for formation, see castellum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of rostellum


British Dictionary definitions for rostellum

rostellum

noun plural -la (-lə)
  1. biology a small beaklike process, such as the hooked projection from the top of the head in tapeworms or the outgrowth from the stigma of an orchid
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Derived Formsrostellate or rostellar, adjective

Word Origin for rostellum

C18: from Latin: a little beak, from rōstrum a beak
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

rostellum in Medicine

rostellum

(rŏ-stĕləm)
n. pl. ros•tel•la (rŏ-stĕlə)
  1. A small beaklike part, such as the hooked projection on the head of a tapeworm.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.