Sigmation is valid Scrabble Word

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

9 letters word
12 points in Scrabble
15 points in WWF

Definitions for SIGMATION in dictionary:

NOUN:

the addition of a sigma at the end of a syllable

Words related to SIGMATION

sigmate10

Words that contain SIGMATION

sigmations13

Similar words containing SIGMA without suffix tion

sigma8 sigmas9 sigmate10 sigmated12 sigmates11 sigmatic13 sigmating13 sigmatism14 sigmatron12 sigmations13 sigmatisms15 sigmatrons13

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

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