O₁X₈O₁N₁I₁U₁M₃S₁

17 points

OXONIUMS is no goodvalid

Not a playable Scrabble word in NWL2023.

It is valid in CSW24·

OXONIUM, a certain grouping of oxygen and hydrogen atoms [n]

170,382 of 280,887 in CSW24·not in NWL2023