The first point of Aries or Libra into which the sun enters at the vernal or autumnal equinox, the equinoctial point. Comp. [Page0999-c+ 56] chāyā the shadow of the gnomon at noon. dinaṃ the day of the equinox. rekhā the equinoctial line. saṃkrāṃtiḥ f. the sun's equinoctial passage.