Superparasitisms is valid word

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

16 letters word
22 points in Scrabble
26 points in WWF

Definitions for SUPERPARASITISMS in dictionary:

NOUN:

Parasitism of one parasitic organism on another; = "hyperparasitism". rare.
Chiefly Entomology. Parasitism of an individual host by more than one parasite or parasitoid of the same species.

Similar words containing PARASITISM without suffix s and without prefix super

parasitism14 parasitisms15 endoparasitism19 semiparasitism20 endoparasitisms20 hyperparasitism27 semiparasitisms21 superparasitism21 hyperparasitisms28

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