paramecium [par- uh- mee-shee- uh m, -sh uh m, -see- uh m] noun, plural par·a·me·ci·a . [par- uh- mee-shee- uh, -sh uh, -see- uh] /ˌpær əˈmi ʃi ə, -ʃə, -si ə/ any ciliated freshwater protozoan of the genus Paramecium, having an oval body and a long, deep oral groove. Origin of paramecium 1745–55;
) oblong, oval +
New Latin -ium
noun suffix; see
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for paramecium British Dictionary definitions for paramecium noun plural -cia ( -sɪə) 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 for paramecium
C18: New Latin, from Greek
paramēkēs elongated, from para- 1 + mēkos length
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for 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
Medicine definitions for paramecium Paramecium [păr′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.
Science definitions for paramecium Plural paramecia 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
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