Antivivisectionists is valid word

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

Definitions for ANTIVIVISECTIONISTS in dictionary:

Similar words containing VIVISECTIONIST without suffix s and without prefix anti

vivisectionist22 vivisectionists23 antivivisectionist26
Find what other words can be done using letters: "antivivisectionists"
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