Calefaction is valid Scrabble Word

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

11 letters word
18 points in Scrabble
22 points in WWF

Definitions for CALEFACTION in dictionary:

NOUN:

the act of heating
the process of heating or warming.
The act of warming or heating; the production of heat in a body by the action of fire, or by communication of heat from other bodies.
The state of being heated.
the property of being warming

Words related to CALEFACTION

calefacient18

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