CALYX /ˈkeɪ.lɪks/ Scrabble 17 Words With Friends 18 Definition noun (botany) the whorl of sepals of a flower collectively forming the outer floral envelope or layer of the perianth enclosing and supporting the developing bud. See all 14 words you can make from CALYX → 5-letter words Words starting with C Words ending with X ← Unscramble different letters