Definition of meridian
1 archaic : the hour of noon : midday
3 : a high point (as of development or prosperity) the problem of the unmarried don after he had passed the meridian — H. J. Laski
4a (1) : a great circle on the surface of the earth passing through the poles (2) : the half of such a circle included between the polesb : a representation of such a circle or half circle numbered for longitude (see longitude 1) on a map or globe — see longitude illustration
5 : any of the pathways along which the body's vital energy flows according to the theory behind acupuncture
Examples of meridian in a Sentence
a lawyer at the meridian of his career arguing a case before the U.S. Supreme Court
Recent Examples of meridian from the Web
Richard Gasquet (FRA) His prime is past his meridian, but always capable of playing dashing tennis, especially on grass.
The meridians, and the acupuncture points found along them, flow through every nerve, muscle, tendon, blood vessel and organ - connecting our head to our toes and everything in-between.
The most recent multisensory development is the connection between food and autonomous sensory meridian response, or ASMR.
In February 1894, a French anarchist named Martial Bourdin planned a terrorist attack on the Royal Observatory in Greenwich, England, the site used to establish the prime meridian, the benchmark for world-wide geographical coordinates.
Their prime meridian is still used today and is where the Meridiani Planum region of Mars gets its name.
Geek factor: High-contrast E Ink digits remain visible at all hours, while 24 programmable time zones and dual time-zone display keep you dialed in across meridians and the International Date Line.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'meridian'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Definition of Meridian
1 city in southwestern Idaho west of Boise population 75,092 ◆Between 2000 and 2010, Meridian more than doubled in population.
2 city in east central Mississippi population 41,148 ◆In 1863, during the American Civil War, Meridian served as temporary state capital for a brief time.
MERIDIAN Defined for English Language Learners
Definition of meridian for English Language Learners
: any one of the lines that go from the North Pole to the South Pole on maps of the world
MERIDIAN Defined for Kids
Definition of meridian for Students
1 : any imaginary semicircle on the earth's surface reaching from the north pole to the south pole
2 : a representation of a meridian on a map or globe numbered according to degrees of longitude
Medical Definition of meridian
1: an imaginary circle or closed curve on the surface of a sphere or globe-shaped body (as the eyeball) that lies in a plane passing through the poles
2: any of the pathways along which the body's vital energy flows according to the theory of acupuncture
Learn More about meridian
Seen and Heard
What made you want to look up meridian? Please tell us where you read or heard it (including the quote, if possible).