- a great circle of the earth passing through the poles and any given point on the earth's surface.
- the half of such a circle included between the poles.
Definition for meridian (2 of 2)
Examples from the Web for meridian
To its proponents Andhra was the meridian, after 600 years of division and dispersal, of Telugu civilization.
Meridian police were not amused and vowed to collect affidavits with an eye toward arresting the perpetrators.
Sure enough, it was founded at a meeting in Meridian, Mississippi in 1888.
Wonderful houses like Meridian House but still thriving with boiseries, Louis XV and paté en croute.
South along the Alleghanies to the Gulf states; west to the 95th meridian.Handbook of the Trees of New England|Lorin Low Dame
He was a man past the meridian of life, a slaveholder and a royal Southerner.Brother Against Brother|John Roy Musick
The sun was at the meridian when three heavily armed riders drew up at the mouth of the caon.Brand Blotters|William MacLeod Raine
If a vessel sails north or south, it is simply a distance on the meridian.The Sailor's Word-Book|William Henry Smyth
Our plan was to go south, and not to leave the meridian unless we were forced to do so by insuperable difficulties.The South Pole, Volumes 1 and 2|Roald Amundsen
British Dictionary definitions for meridian
- 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°
- the great circle running through both polesSee prime meridian
- the great circle on the celestial sphere passing through the north and south celestial poles and the zenith and nadir of the observer
- (as modifier)a meridian instrument
Word Origin for meridian
Word Origin and History for meridian
mid-14c., "noon," from Old French meridien "of the noon time, midday; the Meridian; southerner" (12c.), and directly from Latin meridianus "of midday, of noon, southerly, to the south," from meridies "noon, south," from meridie "at noon," altered by dissimilation from pre-Latin *medi die, locative of medius "mid-" (see medial (adj.)) + dies "day" (see diurnal). Cartographic sense first recorded late 14c. Figurative uses tend to suggest "point of highest development or fullest power."
The city in Mississippi, U.S., was settled 1854 (as Sowashee Station) at a railway junction and given its current name in 1860, supposedly by people who thought meridian meant "junction" (they perhaps confused the word with median).
Medicine definitions for meridian
Science definitions for meridian
Culture definitions for meridian
A great imaginary circle on the surface of the Earth that runs north and south through the North Pole and South Pole. Longitude is measured on meridians: places on a meridian have the same longitude. (See prime meridian.)