Ultrafilters is valid Scrabble Word

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

Definitions for ULTRAFILTERS in dictionary:

Words related to ULTRAFILTERS

ultrafilter14

Similar words containing ULTRAFILTER without suffix s

ultrafilter14 ultrafiltered17 ultrafiltering18
Find what other words can be done using letters: "ultrafilters"
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