noun, plural par·a·me·ci·a [par-uh–mee-shee-uh, -shuh, -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.
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)
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-). n.
- A genus of freshwater ciliate protozoans, characteristically slipper-shaped and covered with cilia, and commonly used for genetic research and other studies.
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.