Orthodromy is valid Scrabble Word

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

Definitions for ORTHODROMY in dictionary:

Words related to ORTHODROMY

orthodromies18
Find what other words can be done using letters: "orthodromy"
https://scrabble-word.com/finder/orthodromy
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