Superefficiencies is valid word

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

17 letters word
29 points in Scrabble
34 points in WWF

Definitions for SUPEREFFICIENCIES in dictionary:

NOUN [PLURAL EF·FI·CIEN·CIES.]:

accomplishment of or ability to accomplish a job with a minimum expenditure of time and effort: The assembly line increased industry's efficiency.

NOUN [PLURAL EFÂ·FIÂ·CIENÂ·CIES.]:

the state or quality of being efficient, or able to accomplish something with the least waste of time and effort; competency in performance.
the ratio of the work done or energy developed by a machine, engine, etc., to the energy supplied to it, usually expressed as a percentage.
efficiency apartment.

Similar words containing EFFICIENCIE without suffix s and without prefix super

efficiencies22 inefficiencies24

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