Science and Technology
Astronomy and Space Exploration
Astronomy: General
perigee

perigee

oxford

views updated May 21 2018

perigee (astron.) point in the orbit of a planet that is nearest to the earth. XVI. In early use varying with forms directly repr. L. and Gr.; — F. périgée — modL. perigēum, -æum — late Gr. perigeion, sb. use of n. of perígeios ‘close round the earth’, f. PERI- + géē, gaîa, gê earth.

The Concise Oxford Dictionary of English Etymology T. F. HOAD

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perigee

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per·i·gee / ˈperəˌjē/ • n. Astron. the point in the orbit of the moon or a satellite at which it is nearest to the earth. The opposite of apogee.

The Oxford Pocket Dictionary of Current English

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perigee

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perigee Point in the orbit about the Earth of the Moon or of an artificial satellite, at which the body is nearest to the Earth.

World Encyclopedia

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perigee

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views updated May 08 2018

perigee The point nearest the planet in the orbit of a satellite, originally defined for the lunar orbit. Compare APOGEE.

A Dictionary of Earth Sciences AILSA ALLABY and MICHAEL ALLABY

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