1. The exterior membrane investing the foetus in utero; the exterior membrane of a seed.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• xhorion,
• vhorion,
• fhorion,
• dhorion,
• cgorion,
• cborion,
• cnorion,
• cjorion,
• cuorion,
• cyorion,
• chirion,
• chorioon,
• chorioin,
• chorionn,
• Choriono,
• Choriouon,
• Chorrian,
• Choreon,
• Chorian,
• Chorriom

• churn,
• charm,
• cherian,
• orion,
• charronia,
• cherne,
• charney,
• chorine,
• cherney,
• Charron,
• charina,
• chernow,
• charon,
• chiarini.

The adjective form of the word "chorion" is "chorionic".

The plural of the "chorion" can be the "chorions".

The singular of the "chorion" can be the "chorion".