Dictionary

geostationary

adjective geo·sta·tion·ary \-ˈstā-shə-ˌner-ē\

Definition of GEOSTATIONARY

:  being or having an equatorial orbit at an altitude of about 22,300 miles (35,900 kilometers) requiring an angular velocity the same as that of the earth so that the position of a satellite in such an orbit is fixed with respect to the earth

First Known Use of GEOSTATIONARY

1961

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