corona

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corona

 [kŏ-ro´nah] (pl. coro´nae, coronas) (L.)
crown; in anatomic nomenclature, an eminence or encircling structure that resembles a crown. adj., adj cor´onal.
corona radia´ta
1. the radiating crown of projection fibers passing from the internal capsule to every part of the cerebral cortex.
2. an investing layer of radially elongated follicle cells surrounding the zona pellucida of the ovum; it accompanies the oocyte during ovulation.

crown

(krown), [TA]
1. Any structure, normal or pathologic, resembling or suggesting a crown or a wreath.
2. In dentistry, that part of a tooth that is covered with enamel. Synonym(s): corona [TA]
3. An artificial substitute for the part of a tooth that is normally covered with enamel.
[L. corona]

corona

/co·ro·na/ (kŏ-ro´nah) pl. coro´nae, coronas   [L.] a crown; in anatomical nomenclature, a crownlike eminence or encircling structure.cor´onal
corona glan´dis pe´nis  the rounded proximal border of the glans penis.
corona radia´ta 
1. the radiating crown of projection fibers passing from the internal capsule to every part of the cerebral cortex.
2. an investing layer of radially elongated follicle cells surrounding the zona pellucida.
corona ve´neris  a ring of syphilitic sores around the forehead.

corona

(kə-rō′nə)
n. pl. coro·nas or coro·nae (-nē)
1. Astronomy
a. A faintly colored luminous ring or halo appearing to surround a celestial body when viewed through a haze or thin cloud, especially such a ring around the moon or sun, caused by scattering or diffraction of light from suspended particulate matter in the intervening medium. Also called aureole.
b. The luminous irregular envelope of extremely hot and highly ionized gas located outside the chromosphere of the sun.
2. Architecture An overhanging part near the top of a classical cornice, having a flat outer face.
3. A cigar with a long tapering body and blunt ends.
4. Anatomy The crownlike upper portion of a bodily part or structure, such as the top of the head.
5. Botany A crown-shaped, funnel-shaped, or trumpet-shaped outgrowth or appendage of the perianth of certain flowers, such as a daffodil. Also called crown.
6. Electricity A faint glow enveloping the high-field electrode in a corona discharge, often accompanied by streamers directed toward the low-field electrode.

corona

[kərō′nə]
Etymology: L, crown
1 a crown.
2 a crownlike projection or encircling structure, such as a process extending from a bone. coronal, coronoid, adj.

corona of penis

A ridge of skin separating the penis head from the shaft, which corresponds to the “trailing” edge of the head.

crown

(krown)
1. Any structure, normal or pathologic, resembling or suggesting a crown or a wreath.
2. dentistry That part of a tooth that is covered with enamel, or an artificial substitute for that part.
Synonym(s): corona [TA] .
[L. corona]

corona

Any structure resembling a crown.

corona

a trumpet-shaped outgrowth of the PERIANTH, as in daffodil flowers.

crown

(krown)
1. [TA] In dentistry, that part of a tooth that is covered with enamel.
2. An artificial substitute for the part of a tooth that is normally covered with enamel.
[L. corona]

Corona

a type of canary, which can be any breed; distinguished by a cap of feathers like an inverted saucer or a Beatles haircut. Called also Crested.

corona

pl. coronae [L.] a crown; a crownlike eminence or encircling structure.

glans corona
the prominent, denticulated margin of the glans penis in the stallion.
corona radiata
1. the radiating crown of projection fibers passing from the internal capsule to every part of the cerebral cortex.
2. an investing layer of radially elongated follicle cells surrounding the zona pellucida of the ovum.
References in periodicals archive ?
A study of the solar corona and prominences without eclipses --George Darwin Lecture.
At 3h 9m 20s [+ or -] my wife, who assisted me at the observation, first detected the planet against the solar corona, though I had previously looked for it in vain.
WASHINGTON -- The Japanese Hinode spacecraft that launched in September 2006 contains the Extreme-ultraviolet Imaging Spectrometer (EIS), which provides measurements of properties of the solar corona such as its temperature, density, and dynamics (flows and turbulence).
A coronal mass ejection (CME) is a massive burst of solar wind and magnetic fields rising above the solar corona or being released into space.
IRIS will fill a crucial gap in the ability of scientists to advance Sun-Earth connection studies by tracing the flow of energy and plasma through a dynamic interface region - the chromosphere and transition region - between the solar surface and the solar corona.
The new images have provided tantalizing hints of another mechanism that likely contributes to the heating of the solar corona.
This is an important and startling breakthrough in understanding how the solar corona may be heated, and I am certainly convinced by it," comments solar researcher Eric Priest of the University of St.
The solar corona has a range of luminosities of several thousands, which makes it impossible to record photographically without special techniques.
CME is a massive burst of solar wind, plasma and magnetic fields rising above the solar corona or being released into space.
1-4, 2000: Interball Symposium: From solar corona through interplanetary space, into Earth's magnetosphere and ionosphere: Interball, ISTP satellites, and ground-based observations, Kiev, Ukraine.
Measurements of the interior of the sun, the sun's magnetic field, the hot plasma of the solar corona, and the irradiance that creates the ionospheres of the planets will help scientists predict solar variations.