Semidiurnal is valid Scrabble Word

Is semidiurnal a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is semidiurnal valid Words with Friends?
Words with Friends YES

Definitions for SEMIDIURNAL in dictionary:

Similar words containing DIURN without suffix al and without prefix semi

diurnal8 diurnals9 diurnally13 diurnalist11 diurnalists12
Find what other words can be done using letters: "semidiurnal"
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