ephippium
noun
ephip·pi·um
-pēəm
plural ephippia
-pēə
1
: sella turcica
2
: a saddlelike chitinous thickening over the brood pouch of various cladocerans that when shed forms a bivalve capsule containing the winter eggs
Word History
Etymology
New Latin, from Greek ephippion saddlecloth, saddle, from neuter of ephippios for putting on a horse, from epi- + hippios of a horse, from hippos horse