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Definition of perigee noun from the Oxford Advanced Learner's Dictionary

perigee

noun
 
/ˈperɪdʒiː/
 
/ˈperɪdʒiː/
(astronomy)
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  1. the point in the orbit of the moon, a planet or other object in space when it is nearest the planet, for example the earth, around which it turns compare apogee
    Word Originlate 16th cent.: from French périgée, via modern Latin from Greek perigeion ‘close round the earth’, from peri- ‘around’ + gē ‘earth’.
See perigee in the Oxford Advanced American Dictionary
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