Atonicity is valid Scrabble Word

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

9 letters word
14 points in Scrabble
15 points in WWF

Definitions for ATONICITY in dictionary:

NOUN:

the quality of being atonic
lack of normal muscular tension or tonus

OTHER DEFINITIONS:

lack of normal tension or tonus

Words related to ATONICITY

atonic8 atonicities13

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