a person or thing that responds.
Electronics. the part of a transponder that transmits the reply.

Nearby words

  1. resplendently,
  2. respond,
  3. respondence,
  4. respondent,
  5. respondent conditioning,
  6. responsa,
  7. response,
  8. response generalization,
  9. response time,
  10. response variable

Origin of responder

First recorded in 1875–80; respond + -er1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for responder

Word Origin and History for responder



1845 of devices, 1871 of persons, agent noun from respond (v.).

Online Etymology Dictionary, © 2010 Douglas Harper