Definition of poller in English:

poller

Pronunciation /ˈpəʊlə/

noun

  • 1rare A person who votes, especially in an election; a voter.

  • 2Pollster.

  • 3Telecommunications Computing
    A unit which automatically obtains information about the status or contents of other devices or nodes in a network and reports this to a central station, especially as part of a repeated cycle of such operations.

Origin

Early 16th century (in an earlier sense). From poll + -er.