Metatheory is valid Scrabble Word

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

Definitions for METATHEORY in dictionary:

Words related to METATHEORY

metatheoretical22 metatheories17
Find what other words can be done using letters: "metatheory"
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