Octavalent is valid Scrabble Word

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

10 letters word
15 points in Scrabble
19 points in WWF

Definitions for OCTAVALENT in dictionary:

ADJECTIVE:

having a valency of eight
having a valency of eight.
Having a valence of eight; capable of being combined with, exchanged for, or compared with, eight atoms of hydrogen; -- said of certain atoms or radicals.

Similar words containing OCTAVAL without suffix ent

octaval12

Find what other words can be done using letters: "octavalent"
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