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anomalistic year

noun Astronomy.
  1. the average interval between consecutive passages of the earth through the perihelion, equivalent to 365.26 days.

Origin of anomalistic year

First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for anomalistic year

anomalistic year

noun
  1. the interval between two successive passages of the earth through perihelion; 365.25964 mean solar days
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