Overspecializations is valid word

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

Definitions for OVERSPECIALIZATIONS in dictionary:

Similar words containing OVERSPECIALIZATION without suffix s

overspecialization34
Find what other words can be done using letters: "overspecializations"
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