e'quinoc'tial storm'

a storm of violent winds and rain occurring at or near the time of an equinox and popularly, but erroneously, believed to be physically associated with it. Also called equinoctial, line gale, line storm.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

equinoctial rainsequinoctial year
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