Pronunciation: (promp'tur), [key]
1. a person or thing that prompts.
2. Theat.a person who is offstage and follows a play in progress from the book, repeating missed cues and supplying actors with forgotten lines.
3. an electronic or mechanical device for prompting a speaker or performer. Cf. TelePrompTer.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.