Gladiatorian is valid Scrabble Word

Is gladiatorian a scrabble word?
Official Scrabble Players Dictionary NO
Official Tournament and Club Word List NO
Collins Scrabble Words YES
Is gladiatorian valid Words with Friends?
Words with Friends NO

Definitions for GLADIATORIAN in dictionary:

Words related to GLADIATORIAN

gladiatorial14
Find what other words can be done using letters: "gladiatorian"
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