CHORION Scrabble 12 Words With Friends 13 Scrabble letter values: C3H4O1R1I1O1N1 = 12 Definition noun the outermost membranous sac enclosing the embryo in higher vertebrates (reptiles, birds and mammals). See all 51 words you can make from CHORION → 7-letter words Words starting with C Words ending with N ← Unscramble different letters