Diorism is valid Scrabble Word

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

Definitions for DIORISM in dictionary:

Words related to DIORISM

diorisms11 dioristic12

Words that contain DIORISM

diorisms11
Find what other words can be done using letters: "diorism"
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