Isobarism is valid Scrabble Word

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

Definitions for ISOBARISM in dictionary:

Words related to ISOBARISM

isobar8 isobarisms14

Words that contain ISOBARISM

isobarisms14
Find what other words can be done using letters: "isobarism"
https://scrabble-word.com/finder/isobarism
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