Ultracentrifugally is valid word

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

Definitions for ULTRACENTRIFUGALLY in dictionary:

Similar words containing ULTRACENTRIFUGAL without suffix ly

ultracentrifugal22
Find what other words can be done using letters: "ultracentrifugally"
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