What's Trending Now
More Trending Words
black mollie
noun
variants: or
black mollienisia
Definition of black mollie
-s
: a small jet-black poeciliid fish (Mollienisia sphenops) from Yucatan that is often kept in the tropical aquarium
People Are Reading
There's more!
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.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of black mollie
black mollie by shortening from black mollienisia
Seen and Heard
What made you want to look up black mollie? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!