A Teleprompter is a device used by people speaking on television or at a public event, which displays words for them to read.
[mainly US, trademark]regional note: in BRIT, usually use Autocue
Teleprompter in British English
(ˈtɛlɪˌprɒmptə)
noun
US and Canadian trademark
an electronic television prompting device whereby a prepared script, unseen by the audience, is enlarged line by line for the speaker
Equivalent in Britain (and certain other countries): Autocue
teleprompter in American English
(ˈtɛləˌprɑmptər)
US
noun
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 on television