O₁P₃E₁I₁D₂O₁S₁C₃O₁P₃E₁

18 points

OPEIDOSCOPE is no goodvalid

Not a playable Scrabble word in NWL2023.

It is valid in CSW24·

an instrument for illustrating sound by means of light [n -S]

164,046 of 280,887 in CSW24·not in NWL2023