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pericenter

[per-uh-sen-ter] /ˈpɛr əˌsɛn tər/
noun, Astronomy
1.
the point at which a heavenly body orbiting around a primary other than the earth or sun is closest to the primary.
Compare apocenter.
Origin
1900-1905
1900-05; peri- + center
Related forms
pericentral, pericentric, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for pericenter

pericentre

/ˈpɛrɪˌsɛntə/
noun
1.
the point in an elliptical orbit that is nearest to the centre of mass of the system
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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