Phagedaenic is valid Scrabble Word

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

Definitions for PHAGEDAENIC in dictionary:

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