chori- I. combining form orchorio- Etymology: New Latin, from Greek chorio-, from chorion 1.: chorion : chorionic < choriocarcinoma > < chorioma > 2.: choroid : choroid and < choriocele > < chorioretinal > II. combining form Etymology: New Latin, from Greek chōri, chōris apart; akin to Greek chēros left, bereaved — more at heir : separated : distinct < choripetalous >