Postmenstrual is valid Scrabble Word

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

Definitions for POSTMENSTRUAL in dictionary:

Similar words containing MENSTRU without suffix al and without prefix post

menstrua10 menstrual11 menstruum13 menstruate12 menstruous12 menstruums14 menstruant12 menstrually16 menstruated14 menstruates13 menstruants13 menstruating15 menstruation14 paramenstrua16 premenstrual16 menstruations15 paramenstruum19 semimenstrual17 intermenstrual16 paramenstruums20 premenstrually21
Find what other words can be done using letters: "postmenstrual"
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