mysis
noun
my·sis
\ˈmīsə̇s\
Definition of mysis
1 capitalized : the type genus of the family Mysidae
2 or mysis stage plural -es : a larva of higher crustaceans (as macrurans and peneids) having all the thoracic appendages biramous
Explore M-W
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 mysis
New Latin, from Greek mysis action of closing (used of the lips or eyes), from myein to close (used of the lips or eyes), close the eyes + -sis
Seen and Heard
What made you want to look up mysis? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!