corona

[kuh-roh-nuh] /kəˈroʊ nə/
noun, plural coronas, coronae
[kuh-roh-nee] /kəˈroʊ ni/ (Show IPA)
1.
a white or colored circle or set of concentric circles of light seen around a luminous body, especially around the sun or moon.
2.
Meteorology. such a circle or set of circles having a small radius and ranging in color from blue inside to red outside, attributable to the diffraction caused by thin clouds, mist, or sometimes dust (distinguished from halo).
3.
Also called aureola, aureole. Astronomy. a faintly luminous envelope outside of the sun's chromosphere, the inner part consisting of highly ionized elements.
4.
a long, straight, untapered cigar, rounded at the closed end.
5.
Botany. a crownlike appendage, especially one on the inner side of a corolla, as in the narcissus.
6.
Anatomy. the upper portion or crown of a part, as of the head.
7.
Electricity, corona discharge.
8.
Architecture. the projecting, slablike member of a classical cornice supported by the bed molding or by modillions, dentils, etc., and supporting the cymatium.
9.
the tonsure of a cleric.
10.
Ecclesiastical. a gold-colored stripe around the lower edge of a clerical headdress, as of a miter.
11.
a chandelier of wrought metal, having the form of one or more concentric hoops.
Origin
1555-65; < Latin corōna garland, crown < Greek korṓnē crown, curved object; akin to korōnís curved, beaked, kórax crow, raven

Corona

[kuh-roh-nuh] /kəˈroʊ nə/
noun
1.
a city in SE California.
Examples from the web for corona
  • It is not yet known exactly how much wave energy is available to heat the corona.
British Dictionary definitions for corona

corona

/kəˈrəʊnə/
noun (pl) -nas, -nae (-niː)
1.
a circle of light around a luminous body, usually the moon
2.
Also called aureole. the outermost region of the sun's atmosphere, visible as a faint halo during a solar eclipse
3.
(architect) the flat vertical face of a cornice just above the soffit
4.
something resembling a corona or halo
5.
a circular chandelier suspended from the roof of a church
6.
(botany)
  1. the trumpet-shaped part of the corolla of daffodils and similar plants; the crown
  2. a crown of leafy outgrowths from inside the petals of some flowers
7.
(anatomy) a crownlike structure, such as the top of the head
8.
(zoology) the head or upper surface of an animal, such as the body of an echinoid or the disc and arms of a crinoid
9.
a long cigar with blunt ends
10.
(physics) short for corona discharge
Word Origin
C16: from Latin: crown, from Greek korōne anything curved; related to Greek korōnis wreath, korax crow, Latin curvus curved
Word Origin and History for corona
n.

1650s, from Latin corona "crown, garland" (see crown (n.)).

corona in Medicine

corona co·ro·na (kə-rō'nə)
n. pl. co·ro·nas or co·ro·nae (-nē)
The crownlike upper portion of a body part or structure, such as the top of the head.

corona in Science
corona
  (kə-rō'nə)   
Plural coronas or coronae (kə-rō'nē)

  1. The luminous, irregular envelope of gas outside the chromosphere of a star. The Sun's corona is composed of ionized gas between approximately 1,000,000°K and 2,000,000°K and has an extremely low density. This phenomenon is visible only during a solar eclipse.

  2. A faintly colored luminous ring appearing to surround a celestial body (such as the Moon or Sun) that is visible through a haze or thin cloud, caused by diffraction of light from suspended matter in the intervening medium. Also called aureole.

  3. A faint glow of the air in the region of very strong electric fields, caused by ionization of the air molecules and flow of current in that region in corona discharge.

  4. The crownlike upper portion of a bodily part or structure, such as the top of the head.

  5. A crown-shaped structure on the inner side of the petals of some flowers, such as the daffodil.


Encyclopedia Article for corona

Corona

city, Riverside county, southwestern California, U.S. Located about 45 miles (70 km) southeast of Los Angeles, Corona lies at the east end of the Santa Ana Canyon on the northeastern edge of the Santa Ana Mountains. Originally inhabited by Luiseno Indians, it became part of the Rancho La Sierra land grant. It was laid out as South Riverside when Queen Colony, a citrus growers' organization, was established (1886). In 1896 it was renamed Corona (Spanish: "Crown") for a 3-mile (5-km) circular drive that is now around the central city and was the site of international automobile races from 1913 to 1916. Largely known for its agricultural products, it was the site of the first lemon-processing plant (1915) in the United States and subsequently developed as a citrus-processing and shipping centre. Other crops include alfalfa, sugar beets, tomatoes, and walnuts. Light manufacturing, mining, and retail are economically important. A notable local attraction is the Fender Museum of Music and the Arts (opened 2002), which provides educational programming for children. Mathews Dam to the east impounds Lake Mathews. Cleveland National Forest, Chino Hills State Park, and Glen Ivy Hot Springs are nearby. Inc. 1896. Pop. (1990) 76,095; (2000) 124,966.

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