responder

[ ri-spon-der ]

noun

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

Word History and Origins

Origin of responder¹

First recorded in 1875–80; respond + -er ¹

Example Sentences

And again, the 56 showed no real improvement with the drug, while the other group - the alcohol responders - did, with effects lasting up to five hours.

From BBC

The agency's first responders had also recovered the bodies of seven people killed in an overnight Israeli strike on a house in Jabalia, he added.

From BBC

Both were pronounced dead at the scene after first responders attempted lifesaving measures.

From Los Angeles Times

The Onion’s bid was backed by the families of eight victims of the 2012 Sandy Hook massacre and a first responder.

From Los Angeles Times

“Swatting poses severe danger to first responders and victims, wastes significant time and resources, and creates fear in communities,” said Paul Abbate, FBI deputy director.

From Los Angeles Times