/ (ˈpɛrɪˌsɛntə) /
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the point in an elliptical orbit that is nearest to the centre of mass of the system
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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
How to use pericentre in a sentence
Starting from the pericentre, it is completed on the return to the pericentre.
In astronomy the word denotes the angular distance of a body from the pericentre of the orbit in which it is moving.