Definition of Geoplana
: a large genus (the type of the family Geoplanidae) of chiefly tropical terrestrial triclad turbellarian worms having a marginal band of eyes about the body
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of geoplana
New Latin, from ge- + Latin plana, feminine of planus flat, level — more at floor
Seen and Heard
What made you want to look up Geoplana? Please tell us where you read or heard it (including the quote, if possible).