Spectroheliograms is valid word

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

Definitions for SPECTROHELIOGRAMS in dictionary:

Similar words containing SPECTROHELIOGRAM without suffix s

spectroheliogram26
Find what other words can be done using letters: "spectroheliograms"
https://scrabble-word.com/finder/spectroheliograms
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