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paramecium

[par-uh-mee-shee-uh m, -shuh m, -see-uh m] /ˌpær əˈmi ʃi əm, -ʃəm, -si əm/
noun, plural paramecia
[par-uh-mee-shee-uh, -shuh, -see-uh] /ˌpær əˈmi ʃi ə, -ʃə, -si ə/ (Show IPA)
1.
any ciliated freshwater protozoan of the genus Paramecium, having an oval body and a long, deep oral groove.
Origin
1745-1755
1745-55; < Neo-Latin < Greek paramḗk(ēs) oblong, oval + Neo-Latin -ium noun suffix; see -ium
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for paramecia

paramecium

/ˌpærəˈmiːsɪəm/
noun (pl) -cia (-sɪə)
1.
any freshwater protozoan of the genus Paramecium, having an oval body covered with cilia and a ventral ciliated groove for feeding: phylum Ciliophora (ciliates)
Word Origin
C18: New Latin, from Greek paramēkēs elongated, from para-1 + mēkos length
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
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Word Origin and History for paramecia

paramecium

n.

1752, Modern Latin Paramecium, the genus name, coined from Greek paramekes "oblong, oval," from para- "on one side" (see para- (1)) + mekos "length," related to makros "long" (see macro-).

Online Etymology Dictionary, © 2010 Douglas Harper
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paramecia in Medicine

Paramecium Par·a·me·ci·um (pār'ə-mē'shē-əm, -sē-əm)
n.
A genus of freshwater ciliate protozoans, characteristically slipper-shaped and covered with cilia, and commonly used for genetic research and other studies.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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paramecia in Science
paramecium
  (pār'ə-mē'sē-əm)   
Plural paramecia or parameciums
Any of various freshwater protozoans of the genus Paramecium that are usually oval in shape and that move by means of cilia. Although they consist of a single cell, paramecia are large enough to be visible to the naked eye. Like other ciliates, paramecia contain two nuclei, a macronucleus and a micronucleus. On the cellular surface is a groove that opens into a gullet, into which food particles are absorbed.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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