bi‧on‧ic /baɪˈɒnɪk $ -ˈɑːn-/
adjective[
Date: 1900-2000;
Origin: bionic 'using electronically controlled parts in the human body' (20-21 centuries), from bio- + electronic]
bionic arms, legs etc are electronic and therefore stronger or faster than normal arms etc – often used humorously:
I swear Mom has bionic ears. [TahlilGaran] Dictionary of Contemporary English ▲