ZYGOSITIES is a playable word

zygosity Scrabble® Dictionary

noun
pl. zygosities
the makeup of a particular zygote
124 Playable Words can be made from "ZYGOSITIES"
   2-Letter Words (17 found)
   6-Letter Words (5 found)
   8-Letter Words (1 found)
   10-Letter Words (1 found)