Meridian

me-rid'i-an, adj. pertaining to mid-day: being on the meridian or at mid-day raised to the highest point.— mid-day the highest point, as of succe an imaginary circle on the earth's surface pa ing through the poles and any given place astr an imaginary circle, pa ing through the poles of the heavens, and the zenith of the spectator, which the sun crps at mid-day [Fr. —L. nteridianus pertaining to nud-day, front t/tendzes (cor for t/iedidies), mid-day medms middle, and dies,.day.]