Definition of Meridian. Meaning of Meridian. Synonyms of Meridian

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Definition of Meridian

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Antemeridian
Antemeridian An`te*me*rid"i*an, a. [L. antemeridianus; ante + meridianus belonging to midday or noon. See Meridian.] Being before noon; in or pertaining to the forenoon. (Abbrev. a. m.)
Chlorogalum pomeridianum
Amole A*mo"le, n. [Mex.] (Bot.) Any detergent plant, or the part of it used as a detergent, as the roots of Agave Americana, Chlorogalum pomeridianum, etc. [Sp. Amer. & Mex.]
Chlorogalum pomeridianum
Soap Soap, n. [OE. sope, AS. s[=a]pe; akin to D. zeep, G. seife, OHG. seifa, Icel. s[=a]pa, Sw. s?pa, Dan. s?be, and perhaps to AS. s[=i]pan to drip, MHG. s[=i]fen, and L. sebum tallow. Cf. Saponaceous.] A substance which dissolves in water, thus forming a lather, and is used as a cleansing agent. Soap is produced by combining fats or oils with alkalies or alkaline earths, usually by boiling, and consists of salts of sodium, potassium, etc., with the fatty acids (oleic, stearic, palmitic, etc.). See the Note below, and cf. Saponification. By extension, any compound of similar composition or properties, whether used as a cleaning agent or not. Note: In general, soaps are of two classes, hard and soft. Calcium, magnesium, lead, etc., form soaps, but they are insoluble and useless. The purifying action of soap depends upon the fact that it is decomposed by a large quantity of water into free alkali and an insoluble acid salt. The first of these takes away the fatty dirt on washing, and the latter forms the soap lather which envelops the greasy matter and thus tends to remove it. --Roscoe & Schorlemmer. Castile soap, a fine-grained hard soap, white or mottled, made of olive oil and soda; -- called also Marseilles, or Venetian, soap. Hard soap, any one of a great variety of soaps, of different ingredients and color, which are hard and compact. All solid soaps are of this class. Lead soap, an insoluble, white, pliable soap made by saponifying an oil (olive oil) with lead oxide; -- used externally in medicine. Called also lead plaster, diachylon, etc. Marine soap. See under Marine. Pills of soap (Med.), pills containing soap and opium. Potash soap, any soap made with potash, esp. the soft soaps, and a hard soap made from potash and castor oil. Pumice soap, any hard soap charged with a gritty powder, as silica, alumina, powdered pumice, etc., which assists mechanically in the removal of dirt. Resin soap, a yellow soap containing resin, -- used in bleaching. Silicated soap, a cheap soap containing water glass (sodium silicate). Soap bark. (Bot.) See Quillaia bark. Soap bubble, a hollow iridescent globe, formed by blowing a film of soap suds from a pipe; figuratively, something attractive, but extremely unsubstantial. This soap bubble of the metaphysicians. --J. C. Shairp. Soap cerate, a cerate formed of soap, olive oil, white wax, and the subacetate of lead, sometimes used as an application to allay inflammation. Soap fat, the refuse fat of kitchens, slaughter houses, etc., used in making soap. Soap liniment (Med.), a liniment containing soap, camphor, and alcohol. Soap nut, the hard kernel or seed of the fruit of the soapberry tree, -- used for making beads, buttons, etc. Soap plant (Bot.), one of several plants used in the place of soap, as the Chlorogalum pomeridianum, a California plant, the bulb of which, when stripped of its husk and rubbed on wet clothes, makes a thick lather, and smells not unlike new brown soap. It is called also soap apple, soap bulb, and soap weed. Soap tree. (Bot.) Same as Soapberry tree. Soda soap, a soap containing a sodium salt. The soda soaps are all hard soaps. Soft soap, a soap of a gray or brownish yellow color, and of a slimy, jellylike consistence, made from potash or the lye from wood ashes. It is strongly alkaline and often contains glycerin, and is used in scouring wood, in cleansing linen, in dyehouses, etc. Figuratively, flattery; wheedling; blarney. [Colloq.] Toilet soap, hard soap for the toilet, usually colored and perfumed.
Circummeridian
Circummeridian Cir`cum*me*rid"i*an, a. [Pref. circum- + meridian.] About, or near, the meridian.
Meridian altitude
Altitude Al"ti*tude, n. [L. altitudo, fr. altus high. Cf. Altar, Haughty, Enhance.] 1. Space extended upward; height; the perpendicular elevation of an object above its foundation, above the ground, or above a given level, or of one object above another; as, the altitude of a mountain, or of a bird above the top of a tree. 2. (Astron.) The elevation of a point, or star, or other celestial object, above the horizon, measured by the arc of a vertical circle intercepted between such point and the horizon. It is either true or apparent; true when measured from the rational or real horizon, apparent when from the sensible or apparent horizon. 3. (Geom.) The perpendicular distance from the base of a figure to the summit, or to the side parallel to the base; as, the altitude of a triangle, pyramid, parallelogram, frustum, etc. 4. Height of degree; highest point or degree. He is [proud] even to the altitude of his virtue. --Shak. 5. Height of rank or excellence; superiority. --Swift. 6. pl. Elevation of spirits; heroics; haughty airs. [Colloq.] --Richardson. The man of law began to get into his altitude. --Sir W. Scott. Meridian altitude, an arc of the meridian intercepted between the south point on the horizon and any point on the meridian. See Meridian, 3.
Postmeridian
Postmeridian Post`me*rid"i*an, a. [L. postmeridianus; post after + meridianus. See Meridian.] 1. Coming after the sun has passed the meridian; being in, or belonging to, the afternoon. (Abbrev. P. M.) 2. Fig., belonging to the after portion of life; late. [R.]
Prime meridian
Prime and ultimate ratio. (Math.). See Ultimate. Prime conductor. (Elec.) See under Conductor. Prime factor (Arith.), a factor which is a prime number. Prime figure (Geom.), a figure which can not be divided into any other figure more simple than itself, as a triangle, a pyramid, etc. Prime meridian (Astron.), the meridian from which longitude is reckoned, as the meridian of Greenwich or Washington. Prime minister, the responsible head of a ministry or executive government; applied particularly to that of England. Prime mover. (Mech.) (a) A natural agency applied by man to the production of power. Especially: Muscular force; the weight and motion of fluids, as water and air; heat obtained by chemical combination, and applied to produce changes in the volume and pressure of steam, air, or other fluids; and electricity, obtained by chemical action, and applied to produce alternation of magnetic force. (b) An engine, or machine, the object of which is to receive and modify force and motion as supplied by some natural source, and apply them to drive other machines; as a water wheel, a water-pressure engine, a steam engine, a hot-air engine, etc. (c) Fig.: The original or the most effective force in any undertaking or work; as, Clarkson was the prime mover in English antislavery agitation. Prime number (Arith.), a number which is exactly divisible by no number except itself or unity, as 5, 7, 11. Prime vertical (Astron.), the vertical circle which passes through the east and west points of the horizon. Prime-vertical dial, a dial in which the shadow is projected on the plane of the prime vertical. Prime-vertical transit instrument, a transit instrument the telescope of which revolves in the plane of the prime vertical, -- used for observing the transit of stars over this circle.

Meaning of Meridian from wikipedia

- Look up Meridian or meridian in Wiktionary, the free dictionary. Meridian or a meridian line (from Latin meridies via Old French meridiane, meaning “midday”)...
- Blood Meridian; or, The Evening Redness in the West is a 1985 epic historical novel by American author Cormac McCarthy, classified under the Western, or...
- 0° A prime meridian is an arbitrarily chosen meridian (a line of longitude) in a geographic coordinate system at which longitude is defined to be 0°. On...
- a meridian is the locus connecting points of equal longitude, which is the angle (in degrees or other units) east or west of a given prime meridian (currently...
- Meridian is the eighth most populous city in the U.S. state of Mississippi, with a po****tion of 35,052 at the 2020 census. It is the county seat of Lauderdale...
- In astronomy, the meridian is the great circle p****ing through the celestial poles, as well as the zenith and nadir of an observer's location. Consequently...
- 4778111°N 0.0014750°W / 51.4778111; -0.0014750 The Greenwich meridian is a prime meridian, a geographical reference line that p****es through the Royal...
- (secondary coordinates) The 180th meridian or antimeridian is the meridian 180° both east and west of the prime meridian in a geographical coordinate system...
- Central meridian may mean: Central meridian (astronomy), the meridian that goes through the centre of the body's disc as seen from the point of view of...
- 10th meridian east forms a great circle with the 170th meridian west. Starting at the North Pole and heading south to the South Pole, the 10th meridian east...