Chorion
Pronunciation : Cho"ri*on
Part of Speech : n.
Etymology : [NL., fr. Gr.
Definition : 1. (Anat.) (a) The outer membrane which invests the fetus in the womb; also, the similar membrane investing many ova at certain stages of development. (b) The true skin, or cutis.
2. (Bot.)
Defn: The outer membrane of seeds of plants.
Source : Webster's Unabridged Dictionary, 1913