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vernal equinox

See under equinox (def 1).
Also called vernal point. the position of the sun at the time of the vernal equinox.
Origin of vernal equinox
1525-35 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for vernal-point

vernal equinox

the time at which the sun crosses the plane of the equator towards the relevant hemisphere, making day and night of equal length. It occurs about March 21 in the N hemisphere (Sept 23 in the S hemisphere)
  1. (astronomy) the point, lying in the constellation Pisces, at which the sun's ecliptic intersects the celestial equator
  2. the time at which this occurs as the sun travels south to north (March 21)
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
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vernal-point in Science
vernal equinox
See under equinox.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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