interequinoctial

from The Collaborative International Dictionary of English v.0.48
Interequinoctial \In`ter*e`qui*noc"tial\, a.
   Coming between the equinoxes.
   [1913 Webster]

         Summer and winter I have called interequinoctial
         intervals.                               --F. Balfour.
   [1913 Webster]
    

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