Is bionic a word in the Scrabble Dictionary

Yes, bionic is playable

...and is worth 13 points.

Found in the following dictionaries

Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)

"Bionic" Definition

adjective

Having anatomical structures or physiological processes that are replaced or enhanced by electronic or mechanical components.
Having extraordinary strength, powers, or capabilities; superhuman.
Of or relating to bionics.
Of or relating to .
Having normal biological capability or performance enhanced by or as if by electronic or electromechanical devices.