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

Definitions for OCTAVALENT in dictionary:

Similar words containing OCTAVAL without suffix ent

octaval12
Find what other words can be done using letters: "octavalent"
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