ACULEI is a playable word

aculeus Scrabble® Dictionary

noun
pl. aculei
a sharp-pointed part
32 Playable Words can be made from "ACULEI"
   2-Letter Words (6 found)
   3-Letter Words (13 found)
   4-Letter Words (10 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)