Equidiurnal

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Equidiurnal \E`qui*di*ur"nal\, a. [Equi- + diurnal.]
     Pertaining to the time of equal day and night; -- applied to
     the equinoctial line. --Whewell.
     [1913 Webster]