pericenter

pericenter

English

Alternative forms

Etymology

Etymology tree
Proto-Indo-European *per-der.
Ancient Greek περῐ́ (perĭ́)der.
English peri-
Proto-Indo-European *ḱent-der.
Ancient Greek κέντρον (kéntron)der.
Latin centrumder.
Middle French centrebor.
Middle English center
English center
English pericenter

    From peri- + center.

    Noun

    pericenter (plural pericenters)

    1. (astronomy) The point of closest approach of an astronomical object in an elliptical orbit to its center of attraction.
      Synonym: perifocus
      Antonym: apocenter

    Derived terms

    See also

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