Ephippium
Pronunciation : E*phip"pi*um
Part of Speech : n.
Etymology : [L., saddle cloth, fr. Gr.
Definition : 1. (Anat.)
Defn: A depression in the sphenoid bone; the pituitary fossa.
2. (Zo?l.)
Defn: A saddle-shaped cavity to contain the winter eggs, situated on the back of Cladocera.
Source : Webster's Unabridged Dictionary, 1913