corona

Definition of corona in English English dictionary: : a low energy discharge caused by ionization of a gas by an electric field; : The luminous plasma atmosphere of the Sun or other star, extending millions of kilometres into space, most easily seen during a total solar eclipse; A crown or garland bestowed among the Romans as a reward for distinguished services; : Any crown-like appendage of a plant or animal; Called also corona lucis; A pastel halo around the moon or sun created by the diffraction of water droplets The droplets in the cloud, such as cirrostratus, and the cloud layer itself must be almost perfectly uniform in order for this phenomena to occur The color display sometimes appears to be iridescent; A peculiar phase of the aurora borealis, formed by the concentration or convergence of luminous beams around the point in the heavens indicated by the direction of the dipping needle; the upper atmosphere of the Sun that appears as a halo around the Sun during a total eclipse; one or more circles of light seen around a luminous object; 1) The upper level of the solar atmosphere, characterized by low densities and high temperatures (> 1 0E+06 K); it is not visible from the Earth except during a total eclipse of the sun or by use of special telescopes called coronagraphs 2) An ovoid-shaped feature; The luminous plasma atmosphere of the Sun or other star, extending millions of kilometres into space, most easily seen during a total solar eclipse; Faint white extensions of the outer solar atmosphere, best seen at a total eclipse of the sun; 1) The upper level of the solar atmosphere, characterized by low densities and high temperatures (> 1 0E+06 K); it is not visible from the Earth except during a total eclipse of the sun or by use of special telescopes called coronagraphs 2) An ovoid-shaped feature; an electrical discharge accompanied by ionization of surrounding atmosphere; Any crownlike appendage at the top of an organ; The atmosphere of the Sun that can be observed out to many times the size of the Sun's main surface, which is called the photosphere The corona is much hotter than the photosphere, but it has a much lower density The gases in the corona are electrically charged Warning: The Sun should be observed only with special equipment to protect the eyes; It is sometimes formed of double or triple circlets, arranged pyramidically; A crown or circlet suspended from the roof or vaulting of churches, to hold tapers lighted on solemn occasions; a long cigar with blunt ends; the outermost layer of the Sun's atmosphere, visible to the eye during a total solar eclipse; it can also be observed through special filters and best of all, by X-ray cameras aboart satellites The corona is very hot, up to 1-1 5 million degrees centigrade, and is the source of the solar wind; The sun's corona is its outer atmosphere. the shining circle of light seen around the sun when the moon passes in front of it in an eclipse (CROWN). Outermost region of the Sun's (or any star's) atmosphere, consisting of plasma. The Sun's corona has a temperature of about 3.6 million °F (2 million °C) and a very low density. Extending more than 8 million mi (13 million km) from the photosphere, it has no definite boundaries, continually varying in size and shape as it is affected by the Sun's magnetic field. The solar wind is formed by expansion of coronal gases. Only about half as bright as the full moon, the corona is overwhelmed by the brilliance of the solar surface and normally not visible to the unaided eye, but a total eclipse permits naked-eye observations; outermost portion of the Sun's atmosphere best observed during a total eclipse of the Sun; The outermost layer of the solar atmosphere The corona consists of a highly rarefied gas with a temperature greater than one million degrees Kelvin It is visible to the naked eye during a solar eclipse; a sonnet sequence where the last line in one sonnet becomes the first line of the next sonnet, and the final line in the sequence repeats the first line of the first sonnet An example is the seven sonnets that open John Donne's holy sonnets; A character [&pause;] called the pause or hold; a low energy discharge caused by ionization of a gas by an electric field [quite common at conductor bends of 12kV or higher]; The outer atmosphere of the sun with low density and high temperature Visible as an extended bright region about the sun during solar eclipse; Any crown-like appendage of a plant or animal; The outermost layers of the Sun; An inner appendage to a petal or a corolla, often forming a special cup, as in the daffodil and jonquil; The outer atmosphere of the Sun; of Column; ovoid-shaped feature; The very hot outer layer of the Sun's atmosphere, composed of highly diffused, superheated, ionized gases, and extending into interplanetary space The hot gasses in the solar corona form the solar wind See also: The Dynamic Sun; A luminous discharge due to ionization of the gas surrounding a conductor around which exists a voltage gradient exceeding a certain critical value A type of discharge-sometimes visible-in the dielectric of an insulation system caused by an electric field and characterized by the rapid development of an ionized channel which does not completely bridge the electrode May be continuous or intermittent Not a material property, but related to the system, including electrodes; {i} halo, white or colored circle surrounding an object (such as the sun or moon); corona = [Latin] from koroone = [Greek] crown The corona is the outermost layer of the Sun, starting at about 1300 miles (2100 km) above the surface (the photosphere) The temperature in the corona is 500,000 K (900,000 degrees F, 500,000 degrees C) or more, up to a few million K The corona is very dilute indeed (less than 1000 million atoms per cubic centimetre or 10,000 million atoms per cubic inch) and cannot be seen with the naked eye except during a total solar eclipse, or with the use of a coronagraph The corona does not have an upper limit: you could say that the Earth moves through the solar corona, though the density of the material near the Earth is usually only a paltry few particles per cubic centimeter You can see the position of the corona in the Solar Layer Image, and an image of the corona in the Corona Image Map; the outermost region of the sun's atmosphere; visible as a white halo during a solar eclipse; The outermost layer of the solar atmosphere, characterized by low densities (1 0E+06 degrees K) that extends to several solar radii The heating of the corona is still a mystery The shape of the corona is different at solar maximum and at solar minimum; (anatomy) any structure that resembles a crown in shape; The outermost layer of the solar atmosphere, characterized by low densities (10E+6 K) It is not visible from the Earth except during a total eclipse of the Sun or by use of a special telescope called a coronagraph; the top layer of the Sun's atmosphere It is up to a few million degrees in temperature, but has very low density so the amount of heat is small It is the pearly-white ``crown'' or glow seen around the dark Moon during a total solar eclipse; The shelly skeleton of a sea urchin; (botany) the trumpet shaped or cup shaped outgrowth of the corolla of a daffodil or narcissus flower; The ghostly white halo that surrounds the sun during totality This is the sun's outer atmosphere which is so dim that it can only ever be seen during totality; pl coronae, Ovoid-shaped feature; A circle, usually colored, seen in peculiar states of the atmosphere around and close to a luminous body, as the sun or moon; The tenuous outer atmosphere of the Sun whose structure is controlled by solar magnetic fields The corona has a temperature between 1 and 3 million degrees It merges into the solar wind at its upper boundary about 1-2 solar radii above the visible surface or photosphere; The upper surface of some part, as of a tooth or the skull; a crown; A peculiar luminous appearance, or aureola, which surrounds the sun, and which is seen only when the sun is totally eclipsed by the moon; The outer part of the Sun's atmosphere The corona is visible from Earth during a total solar eclipse It is the bright glow seen in most solar eclipse photos; a long cigar with blunt ends (anatomy) any structure that resembles a crown in shape one or more circles of light seen around a luminous object (botany) the trumpet shaped or cup shaped outgrowth of the corolla of a daffodil or narcissus flower; The projecting part of a Classic cornice, the under side of which is cut with a recess or channel so as to form a drip; aureole
Corona Australis: A small summer constellation of the northern sky said to resemble a crown
Corona Austrina: Alternative name of Corona Australis
Corona Borealis: A small constellation said to resemble a crown
Corona Corona: An expensive Cuban cigar
Corona Borealis: Northern Crown, northern constellation
corona borealis: a small constellation in the northern hemisphere between Bootes and Hercules
corona discharge: An electrocal surface treatment that encourages oxidation of a surface to reduce surface tension and improve ink adhesion
corona discharge: An electrical surface treatment that encourages oxidation of a surface to reduce tension and improve ink adhesion
corona discharge: an electrical discharge accompanied by ionization of surrounding atmosphere
corona discharge: -An electrical discharge at the surface of a conductor accompanied by the ionization of the surronding atmosphere It is normally accompanied by light and audible noise
corona discharge: An electrical discharge characterized by a corona and occurring when one of two electrodes in a gas has a shape causing the electric field at its surface to be significantly greater than that between the electrodes
corona discharge: Corona can be defined as a type of localized discharge that results from high, non-uniform electric fields It causes deterioration of the insulator and sometimes causes complete breakdown A corona discharge is capable of producing oxides of nitrogen, which are pollutants, and generates electromagnetic radiation that may disturb radio and TV reception The obvious ways to detect a corona are by sight and sound At high voltages, corona produces visible light and audible noise Corona can also be detected by using various types of measuring equipment When observed, corona may appear as a faint glow (The AirSource® 3000 model does NOT use corona discharge Rather, it uses an ultraviolet lamp to produce light energy as a photocatalyst While powerful enough to create the advanced oxidation process, the UV lamp does not create oxides of nitrogen that can be irritating to the lungs and eyes )
solar corona: The upper atmosphere of the sun, only visible during a total solar eclipse
coronae: plural of corona

corona

Hyphenation

co·ro·na

Turkish pronunciation

kırōnı

Pronunciation

/kərˈōnə/ /kɜrˈoʊnə/

Etymology

[ k&-'rO-n& ] (noun.) 1563. From Latin corōna (“garland, crown”), from Ancient Greek κορώνη (korōnē, “garland, wreath”).

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corona

Definition of corona in English Turkish dictionary

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Definition of corona in English English dictionary

Related Terms

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Turkish pronunciation

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