from The American Heritage® Dictionary of the English Language, 4th Edition

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

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An oval-shaped protozoan organism of the genus Paramecium.

from The Century Dictionary and Cyclopedia

  • n. The typical genus of Parameciidæ; the slipper-animalcules, having a soft flexible cuticle and oblique adoral groove. P. bursarium is an example. Commonly, but wrongly, Paramæcium or Paramœicium.
  • n. [lowercase; pl. paramecia (-ä).] A member of this genus.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. any member of the genus Paramecium


New Latin Paramēcium, genus name, from Greek paramēkēs, oblong in shape : para-, alongside; see para- + mēkos, length.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek παραμήκης (paramēkēs, "oval"), from μῆκος (mēkos, "length"). (Wiktionary)


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