Cite
 

Meaning of ephippium

e•phip•pi•um

Pronunciation: (i-fip'ē-um), [key]
— pl. e•phip•pi•a
  1. a thick shell, consisting of two chitinous plates, that encloses and protects the winter eggs of a cladoceran.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.