from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Plural form of planarium.
from the GNU version of the Collaborative International Dictionary of English
- n. Any species of turbellarian worms belonging to Planaria, and many allied genera. The body is usually flat, thin, and smooth. Some species, in warm countries, are terrestrial.
from The Century Dictionary and Cyclopedia
- n. The typical genus of Planariidæ. P. torva is an example.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. free-swimming mostly freshwater flatworms; popular in laboratory studies for the ability to regenerate lost parts
Sorry, no etymologies found.