Overconcentrations is valid word

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

18 letters word
25 points in Scrabble
31 points in WWF

Definitions for OVERCONCENTRATIONS in dictionary:

NOUN:

the act of concentrating; the state of being concentrated.
exclusive attention to one object; close mental application.
something concentrated: a concentration of stars.
(in a solution) a measure of the amount of dissolved substance contained per unit of volume.
a game in which all 52 cards are spread out face down on the table and each player in turn exposes two cards at a time and replaces them face down if they do not constitute a pair, the object being to take the most pairs by remembering the location of the cards previously exposed.
the focusing of a student's academic program on advanced study in a specific subject or field.

Similar words containing OVERCONCENTRATION without suffix s

overconcentration24

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