equinoctial (adj.)

  1. relating to the vicinity of the equator

  2. relating to an equinox (when the lengths of night and day are equal)

    equinoctial (n.)

  1. the great circle on the celestial sphere midway between the celestial poles

    [ Syn: celestial equator , equinoctial circle , equinoctial line ]

The dictionary is based on the WordNet Electronic Lexical Database.
WordNet 3.0 Copyright 2011 by Princeton University. All rights reserved.