Definitions for CORONAkəˈroʊ nə

This page provides all possible meanings and translations of the word CORONA

Princeton's WordNetRate this definition:(0.00 / 0 votes)

  1. aureole, corona(noun)

    the outermost region of the sun's atmosphere; visible as a white halo during a solar eclipse

  2. corona(noun)

    (botany) the trumpet-shaped or cup-shaped outgrowth of the corolla of a daffodil or narcissus flower

  3. corona discharge, corona, corposant, St. Elmo's fire, Saint Elmo's fire, Saint Elmo's light, Saint Ulmo's fire, Saint Ulmo's light, electric glow(noun)

    an electrical discharge accompanied by ionization of surrounding atmosphere

  4. corona(noun)

    one or more circles of light seen around a luminous object

  5. corona(noun)

    (anatomy) any structure that resembles a crown in shape

  6. corona(noun)

    a long cigar with blunt ends

WiktionaryRate this definition:(0.00 / 0 votes)

  1. corona(Noun)

    A crown or garland bestowed among the Romans as a reward for distinguished services.

  2. corona(Noun)

    The luminous plasma atmosphere of the Sun or other star, extending millions of kilometres into space, most easily seen during a total solar eclipse,

  3. corona(Noun)

    Any crown-like appendage of a plant or animal.

  4. corona(Noun)

    (electrical): a low energy discharge caused by ionization of a gas by an electric field [quite common at conductor bends of 12kV or higher].

  5. Origin: From corona, from .

Webster DictionaryRate this definition:(0.00 / 0 votes)

  1. Corona(noun)

    a crown or garland bestowed among the Romans as a reward for distinguished services

  2. Corona(noun)

    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. See Illust. of Column

  3. Corona(noun)

    the upper surface of some part, as of a tooth or the skull; a crown

  4. Corona(noun)

    the shelly skeleton of a sea urchin

  5. Corona(noun)

    a peculiar luminous appearance, or aureola, which surrounds the sun, and which is seen only when the sun is totally eclipsed by the moon

  6. Corona(noun)

    an inner appendage to a petal or a corolla, often forming a special cup, as in the daffodil and jonquil

  7. Corona(noun)

    any crownlike appendage at the top of an organ

  8. Corona(noun)

    a circle, usually colored, seen in peculiar states of the atmosphere around and close to a luminous body, as the sun or moon

  9. Corona(noun)

    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

  10. Corona(noun)

    a crown or circlet suspended from the roof or vaulting of churches, to hold tapers lighted on solemn occasions. It is sometimes formed of double or triple circlets, arranged pyramidically. Called also corona lucis

  11. Corona(noun)

    a character [/] called the pause or hold

  12. Origin: [L. corona crown. See Crown.]

FreebaseRate this definition:(0.00 / 0 votes)

  1. Corona

    A corona is a type of plasma of the Sun or other celestial body, extending millions of kilometres into space, most easily seen during a total solar eclipse, but also observable in a coronagraph. The word "corona" itself derived from the Latin, meaning crown, which in turn came from the Ancient Greek κορώνη meaning "garland" or "wreath". The high temperature of the corona gives it unusual spectral features, which led some to suggest, in the 19th century, that it contained a previously unknown element, "coronium". These spectral features have since been traced to highly ionized iron which indicates a plasma temperature in excess of 106 kelvin. The fact that the Sun has a million-degree corona was first discovered by Gotrian in 1939 and Bengt Edlén in 1941 by identifying the coronal lines as transitions from low-lying metastable levels of the ground configuration of highly ionised metals. Light from the corona comes from three primary sources, which are called by different names although all of them share the same volume of space. The K-corona is created by sunlight scattering off free electrons; Doppler broadening of the reflected photospheric absorption lines completely obscures them, giving the spectral appearance of a continuum with no absorption lines. The F-corona is created by sunlight bouncing off dust particles, and is observable because its light contains the Fraunhofer absorption lines that are seen in raw sunlight; the F-corona extends to very high elongation angles from the Sun, where it is called the zodiacal light. The E-corona is due to spectral emission lines produced by ions that are present in the coronal plasma; it may be observed in broad or forbidden or hot spectral emission lines and is the main source of information about the corona's composition.

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