1. utilizing electronic devices and mechanical parts to assist humans in performing difficult, dangerous, or intricate tasks, as by supplementing or duplicating parts of the body: The scientist used a bionic arm to examine the radioactive material.
  2. Informal. having superhuman strength or capacity.
  3. of or relating to bionics.


  1. of or relating to bionics
  2. (in science fiction) having certain physiological functions augmented or replaced by electronic equipmentthe bionic man

1901, as a term in the study of fossils, from Greek. bios “life” (see bio-). Meaning “pertaining to bionics” is recorded from 1963. Popular sense of “superhumanly gifted or durable” is from 1976, from popular U.S. television program “The Bionic Man” and its spin-offs.


  1. Of, relating to, or developed from bionics.
  2. Having anatomical structures or physiological processes that are replaced or enhanced by electronic or mechanical components.
  3. Having extraordinary strength, powers, or capabilities; superhuman.

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