Posttranscriptional is valid word

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

Definitions for POSTTRANSCRIPTIONAL in dictionary:

Similar words containing TRANSCRIPTION without suffix al and without prefix post

transcription17 transcriptions18 transcriptional19 transcriptionis19 mistranscription22 transcriptionist20 transcriptionists21 mistranscriptions23 transcriptionally24
Find what other words can be done using letters: "posttranscriptional"
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