You searched for: “perigean”
perigean
Periapsis in Earth orbit; the point in its orbit where a satellite is nearest to the Earth.
This entry is located in the following unit: peri- (page 8)
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perigean tide
A monthly tide of increased range that occurs when the moon is at perigee or closest to the earth.
This entry is located in the following unit: Ocean and Deep Sea Terms (page 4)