chorion   (TTS Sound)

The chorion has 1 Senses.

• chorion
• 絨毛膜
• the outermost membranous sac enclosing the embryo in higher vertebrates (reptiles, birds and mammals)
• 高等脊椎動物（爬虫類、鳥と哺乳類）の胚を囲む最も外側の膜嚢