Attoseconds is valid Scrabble Word

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

Definitions for ATTOSECONDS in dictionary:

Words related to ATTOSECONDS

attosecond13

Similar words containing ATTOSECOND without suffix s

attosecond13
Find what other words can be done using letters: "attoseconds"
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