Timbrology is valid Scrabble Word

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

Definitions for TIMBROLOGY in dictionary:

Words related to TIMBROLOGY

timbrologies17
Find what other words can be done using letters: "timbrology"
https://scrabble-word.com/finder/timbrology
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