an electronic device that, unseen by the audience, scrolls a prepared speech, script, etc. line by line, as a prompting aid to a speaker or actor
Origin of teleprompter; from TelePrompTer, origin, originally , name of the device (not trademarked), now a trademark of TelePrompTer Corp., supplier of cable and amp; television services
A trademark for a device employed in television to show an actor or a speaker an enlarged line-by-line reproduction of a script, unseen by the audience.
Genericized trademark; tele- + prompter