CHIASMA is a playable word

chiasma Scrabble® Dictionary

noun
pl. chiasmas or chiasmata
an anatomical junction
(adjective) chiasmal, chiasmic
88 Playable Words can be made from "CHIASMA"
   2-Letter Words (13 found)
   3-Letter Words (28 found)
   5-Letter Words (11 found)
   6-Letter Words (4 found)
   7-Letter Words (2 found)