Definition of "paramecium" []

• Any of various freshwater ciliate protozoans of the genus Paramecium, usually oval and having an oral groove for feeding. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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