Phototropy is valid Scrabble Word

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

Definitions for PHOTOTROPY in dictionary:

Words related to PHOTOTROPY

phototropies19

Words that contain PHOTOTROPY

diaphototropy24
Find what other words can be done using letters: "phototropy"
https://scrabble-word.com/finder/phototropy
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