Interfrontal is valid Scrabble Word

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

Definitions for INTERFRONTAL in dictionary:

Similar words containing TERFRONT without suffix al and without prefix in

waterfront16 waterfronts17
Find what other words can be done using letters: "interfrontal"
https://scrabble-word.com/finder/interfrontal
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