Nyctinasty is valid Scrabble Word

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

Definitions for NYCTINASTY in dictionary:

Words related to NYCTINASTY

nyctinasties17
Find what other words can be done using letters: "nyctinasty"
https://scrabble-word.com/finder/nyctinasty
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