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)