Chaology is valid Scrabble Word

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

Definitions for CHAOLOGY in dictionary:

Words related to CHAOLOGY

chaologies16 chaologist16 chaologists17
Find what other words can be done using letters: "chaology"
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