Semielliptical is valid Scrabble Word

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

14 letters word
20 points in Scrabble
26 points in WWF

Definitions for SEMIELLIPTICAL in dictionary:

ADJECTIVE:

being in the form of a partial ellipse
having the shape of half of an ellipse bisected by one of its diameters, especially the major axis.

Similar words containing ELLIPTIC without suffix al and without prefix semi

elliptic12 elliptical14 ellipticals15 ellipticity18 elliptically19 ellipticities17 ellipticalness18

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