Circumlittoral is valid Scrabble Word

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

Definitions for CIRCUMLITTORAL in dictionary:

Similar words containing LITTOR without suffix al and without prefix circum

littoral8 littorals9 midlittoral14 sublittoral13 midlittorals15 sublittorals14
Find what other words can be done using letters: "circumlittoral"
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