Coversine is valid Scrabble Word

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

Definitions for COVERSINE in dictionary:

Words related to COVERSINE

coversines15

Words that contain COVERSINE

coversines15
Find what other words can be done using letters: "coversine"
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