Dictionary > Meridian

Meridian

meridian
1. Midday; noon.
2. Hence: The highest point, as of success, prosperity, or the like; culmination. I have touched the highest point of all my greatness, And from that full meridian of my glory I haste now to my setting. (Shak)
3. (Science: astronomy) A great circle of the sphere passing through the poles of the heavens and the zenith of a given place. It is crossed by the sun at midday.
4. (Science: geography) A great circle on the surface of the earth, passing through the poles and any given place; also, the half of such a circle included between the poles.
The planes of the geographical and astronomical meridians coincide. Meridians, on a map or globe, are lines drawn at certain intervals due north and south, or in the direction of the poles. Calculated for, or fitted to, or adapted to, the meridian of, suited to the local circumstances, capabilities, or special requirements of. All other knowledge merely serves the concerns of this life, and is fitted to the meridian thereof. (Sir M. Hale) first meridian, the meridian from which longitudes are reckoned. The meridian of Greenwich is the one commonly employed in calculations of longitude by geographers, and in actual practice, although in various countries other and different meridians, chiefly those which pass through the capitals of the countries, are occasionally used; as, in France, the meridian of paris; in the united states, the meridian of Washington, etc. Guide meridian, a line, marked by monuments, running North and South through a section of country between other more carefully established meridians
8b8
called principal meridians, used for reference in surveying. Magnetic meridian, a great circle, passing through the zenith and coinciding in direction with the magnetic needle, or a line on the earth’s surface having the same direction.
(Science: astronomy) Meridian circle, any astronomical instrument having a telescope that rotates in a meridian plane. Meridian of a globe, or brass meridian, a graduated circular ring of brass, in which the artificial globe is suspended and revolves.
Origin: F. Meridien. See Meridian.


You will also like...

New Zealand - Biodiversity fauna
New Zealand’s Biodiversity

Find out more about New Zealand's unique biodiversity by exploring a range of different ecosystems and the key role of s..

Consciousness and behavior
Consciousness and Behavior

Human consciousness and behavior are an interesting topic since they are determined and controlled by the brain. Conscio..

Water Cycle
The Water Cycle

The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..

Oligodendrocyte and Schwann cell
The Central Nervous System

Myelin sheath is essential for a faster conductivity of signals. Know more about this feature of some neurons in the Cen..

An artistic depiction of Dunkleosteus fish
Fish

The sea was teeming with life. Eventually, through reproduction and continued variation, fish came about. There are over..

Hominid
The Hominids

The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..

Related Articles...

No related articles found

See all Related Topics