|1.||a. one of the imaginary lines joining the north and south poles at right angles to the equator, designated by degrees of longitude from 0° at Greenwich to 180°|
|b. See prime meridian the great circle running through both poles|
|a. the great circle on the celestial sphere passing through the north and south celestial poles and the zenith and nadir of the observer|
|b. (as modifier): a meridian instrument|
|3.||maths Also called: meridian section a section of a surface of revolution, such as a paraboloid, that contains the axis of revolution|
|4.||the peak; zenith: the meridian of his achievements|
|5.||(in acupuncture, etc) any of the channels through which vital energy is believed to circulate round the body|
|7.||along or relating to a meridian|
|8.||of or happening at noon|
|9.||relating to the peak of something|
|[C14: from Latin merīdiānus of midday, from merīdiēs midday, from medius|
meridian me·rid·i·an (mə-rĭd'ē-ən)
An imaginary line encircling a globular body at right angles to its equator and passing through its poles.
Either half of such a great circle from pole to pole.
Any of the longitudinal lines or pathways on the body along which the acupuncture points are distributed.
|meridian (mə-rĭd'ē-ən) Pronunciation Key
city, seat of Lauderdale county, eastern Mississippi, U.S., lying 93 miles (150 km) east of Jackson. In 1854 the site was chosen as the junction of the Vicksburg and Montgomery and the Mobile and Ohio railway lines about 20 miles (30 km) from the Alabama border. The name was chosen by a settler who thought "meridian" meant "junction," or, possibly, "zenith." During the American Civil War it was a Confederate military camp and served as the state capital for one month in 1863. General William Tecumseh Sherman's Union troops destroyed the city the following February. Merrehope is a surviving stately 20-room antebellum mansion; the city's Grand Opera House dates from 1890. Major manufactures include audio equipment, paper products, automotive parts, and steel products. Meridian Community College was opened in 1937; the city also has a branch campus of Mississippi State University. A naval air station is 15 miles (25 km) northeast. Okatibbee Dam and Lake are 10 miles (15 km) northwest; Clarkco State Park is 20 miles (30 km) south
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