In full celestial meridian: a great circle passing through the poles of the celestial sphere and the zenith for a particular point on the Earth's surface. [from 14th c.]

October 13th, 2026

A separation or division into two; a distinction that results in such a division.

October 12th, 2026

(physiology) Denoting or relating to scotopia (“vision of an eye under dim or low-light conditions”), believed to involve chiefly the rod cells of the retina; also, adapted to vision under low-light conditions.

October 11th, 2026

A kind of narrative poem, adapted for recitation or singing; especially, a sentimental or romantic poem in short stanzas.

October 10th, 2026