Counterconditionings is valid word

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

Definitions for COUNTERCONDITIONINGS in dictionary:

Similar words containing UNTERCONDITIONING without suffix s and without prefix co

counterconditioning25
Find what other words can be done using letters: "counterconditionings"
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