Astronomy Answers
From the Astronomical Dictionary

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The description of the word you requested from the astronomical dictionary is given below.

the perigee

peri- = [Greek] around; Gè = [Greek] Earth

The perigee is the point in an orbit around the Earth that is closest to the Earth. The opposite point is called apogee. The more general word, that can be used also for other bodies, is perifocus.