Equinoctial colure

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Related to Equinoctial colure: solstitial colure
(Astron.) the meridian passing through the equinoctial points.

See also: Equinoctial

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
The great circle that connects the vernal equinox with the north celestial pole - and more-or-less hooks it to Polaris - is called the equinoctial colure. Although this strand is invisible, two conspicuous stars, Caph (Beta Cassiopeiae) and Alpheratz (Alpha Andromedae), are close enough to it to reveal the path the colure threads through the constellations.