Disproportionations is valid word

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

19 letters word
24 points in Scrabble
28 points in WWF

Definitions for DISPROPORTIONATIONS in dictionary:

NOUN [CHEMISTRY.]:

the simultaneous oxidation and reduction of a substance reacting with itself, thereby forming two dissimilar molecules, as 2C2H4â†’C2H6+C2H2.
the simultaneous oxidation and reduction of a substance reacting with itself, thereby forming two dissimilar molecules, as 2C2H4→C2H6+C2H2.

Similar words containing PROPORTIONATION without suffix s and without prefix dis

disproportionation23

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