Definition of grass frog
: any of several frogs of semiterrestrial habits: such as a : a common European frog (Rana temporaria) b : pickerel frog
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!
Seen and Heard
What made you want to look up grass frog? Please tell us where you read or heard it (including the quote, if possible).