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See more synonyms for apocenter on Thesaurus.com
noun Astronomy.
  1. the point in the orbit of a heavenly body farthest from a primary other than the earth or the sun.
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Compare pericenter.

Origin of apocenter

First recorded in 1900–05; apo- + center
Related formsap·o·cen·tric, adjectiveap·o·cen·tric·i·ty [ap-uh-sen-tris-i-tee] /ˌæp ə sɛnˈtrɪs ɪ ti/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018