Cursus is valid Scrabble Word

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

Definitions for CURSUS in dictionary:

Words related to CURSUS

cursal8 cursi7
Find what other words can be done using letters: "cursus"
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