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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 cho·ri·on /ˈkoriˌɑn, ˈkɔr-/

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 cho·ri·on /ˈkorɪˌɑn, ˈkɔr-/ 名詞

From: Webster's Revised Unabridged Dictionary (1913)

 Cho·ri·on n.
 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. The outer membrane of seeds of plants.

From: WordNet (r) 2.0

      n : outermost membranous sac enclosing the embryo in higher
          vertebrates (reptiles, birds and mammals)