Extincture is valid Scrabble Word

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

Definitions for EXTINCTURE in dictionary:

Words related to EXTINCTURE

extinction19 extinctures20

Words that contain EXTINCTURE

extinctures20
Find what other words can be done using letters: "extincture"
https://scrabble-word.com/finder/extincture
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