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paramecium definitions

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WordNet (r) 3.0 (2005)

n
1: any member of the genus Paramecium [syn: paramecium, paramecia]

Merriam Webster's

noun (plural paramecia; also -ciums) Etymology: New Latin, from Greek param?k?s oblong, from para- + m?kos length; akin to Greek makros long — more at meager Date: 1752 any of a genus (Paramecium) of ciliate chiefly freshwater protozoans that have an elongate body rounded at the anterior end and an oblique funnel-shaped buccal groove bearing the mouth at the extremity

Oxford Reference Dictionary

n. (also paramoecium) any freshwater protozoan of the genus Paramecium, of a characteristic slipper-like shape covered with cilia. Etymology: mod.L f. Gk paramekes oval (as PARA-(1), mekos length)