Epidictic is valid Scrabble Word

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

Definitions for EPIDICTIC in dictionary:

Find what other words can be done using letters: "epidictic"
https://scrabble-word.com/finder/epidictic
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