Overrepresentations is valid word

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

Definitions for OVERREPRESENTATIONS in dictionary:

Similar words containing OVERREPRESENTATION without suffix s

overrepresentation23
Find what other words can be done using letters: "overrepresentations"
https://scrabble-word.com/finder/overrepresentations
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