One entry found for paramecium.

Main Entry: par·a·me·cium
Pronunciation: par--m-sh(-)m, -s-m
Function: noun
Inflected Form(s): plural parame·cia /-sh(-), -s- /; also -ciums
: any of a genus of one-celled somewhat slipper-shaped mostly freshwater protozoans that move by cilia
[paramecium illustration]