[dahy-uh-ler, dahy-ler]
  1. a person or thing that dials.
  2. an electronic device attached to a telephone to call preselected numbers automatically when activated.
Also especially British, di·al·ler.

Origin of dialer

First recorded in 1740–50; dial + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for dialer

Historical Examples of dialer