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(), Per°ige"um ()} n.[NL. perigeum, fr. Gr. about, near + the earth: cf. F. prige.] (Astron.) That point in the orbit of the moon which is nearest to the earth; -- opposed to apogee. It is sometimes, but rarely, used of the nearest points of other orbits, as of a comet, a planet, etc. Called also epigee, epigeum. スポンサード リンク
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