mysis
noun
my·sis
ˈmīsə̇s
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
Word History
Etymology
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