Telstar

[ tel-stahr ]
/ ˈtɛlˌstɑr /

Trademark.

one of an early series of privately financed, low-orbit, active communications satellites, the first of which was launched July 10, 1962.
one of a later series of privately financed, geosynchronous communications satellites that provide domestic television, telephone, and data exchange transmission to the U.S.

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British Dictionary definitions for telstar

Telstar
/ (ˈtɛlˌstɑː) /

noun

either of two low-altitude active communications satellites launched in 1962 and 1963 by the US and used in the transmission of television programmes, telephone messages, etc