rostellum

[ro-stel-uhm]

ros·tel·lum

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

Origin:
1750–60; < Neo-Latin; Latin: little beak, snout, diminutive of rōstrum snout (see rostrum); for formation, see castellum
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source Link To rostellum

00:10

00:09

00:08

00:07

00:06

00:05

00:04

00:03

00:02

00:01

Rostellum is always a great word to know.
So is nuclear membrane. Does it mean:
the double membrane surrounding the nucleus within a cell
a cell or organism that is genetically identical to the individual from which it was derived
Collins
World English Dictionary
rostellum (rɒˈstɛləm)
 
n , pl -la
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
 
[C18: from Latin: a little beak, from rōstrum a beak]
 
ros'tellate
 
adj
 
ros'tellar
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

rostellum ros·tel·lum (rŏ-stěl'əm)
n. pl. ros·tel·la (rŏ-stěl'ə)
A small beaklike part, such as the hooked projection on the head of a tapeworm.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Dictionary.com, LLC. Copyright © 2012. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature
FAVORITES
RECENT