any of a genus (Paramecium) of one-celled, elongated, slipper-shaped ciliates moving by means of cilia and having a backward-curving oral groove that ends with the mouth
Origin of parameciumModern Latin ; from Classical Greek param?k?s, oval ; from para-, para- + m?kos, length, akin to makros, long: see macro-
nounpl. par·a·me·ci·a or par·a·me·ci·ums
Any of various slipper-shaped freshwater ciliate protozoans of the genus Paramecium, having an oral groove for feeding.
Origin of parameciumNew Latin Param&emacron;cium, genus name, from Greek param&emacron;k&emacron;s, oblong in shape : para-, alongside; see para–1 + m&emacron;kos, length; see mak- in Indo-European roots.
(plural paramecia or parameciums)
From Ancient Greek Ï€Î±ÏÎ±Î¼Î®ÎºÎ·Ï‚ (paramÄ“kÄ“s, “oval"), from Î¼á¿†ÎºÎ¿Ï‚ (mÄ“kos, “length").