equinoctial

Part of speech: adjective

Occurring at or pertaining to the equinox.

Part of speech: noun

A severe storm occurring at or near the equinox.

Part of speech: noun

The equator.

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Usage examples "equinoctial":

  1. " Then there will be more need of going," said Jonas; " for if the equinoctial storm comes on before the roof is strengthened, it may get carried away." - "Rollo's Philosophy. [Air]", Jacob Abbott.
  2. As one half of the ecliptic is north, and the other half south, of the equator, the line of intersection of their planes is at two points which are known as the equinoctial points, because, when the Sun on his upward and downward journey arrives at either of them the days and nights are of equal length all over the world. - "The Astronomy of Milton's 'Paradise Lost'", Thomas Orchard.
  3. Others transported the garden beyond the equinoctial line and placed it in the southern hemisphere; supposing that the torrid zone might be the flaming sword appointed to defend its entrance against mortals. - "The Life and Voyages of Christopher Columbus (Vol. II)", Washington Irving.