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ephippium

noun ephip·pi·um \ -pēəm \
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Definition of ephippium

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

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Origin and Etymology of ephippium

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

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