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

(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 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]
References in periodicals archive ?
According to Doug Harvey of Southeast Copy Supply in Juneau, those parts include wiper blades and gold-plated corona wires. A wire that is dirty or stretched from too many cleanings causes uneven print quality.
where [S.sub.0] is the area of elementary strip on the surface of corona wire [S.sub.0] = [pi][r.sub.0]l/m, l = 1 m, and J = [rho]kE.
The difference between the digital values of the component [F.sub.r] and the corresponding values computed with the Deutsch's-Popkov's assumption in [6] increases from 9,3% at the corona wire surface to 29,6% on the surface of plate.
Comparison of digital corona field strength data and the data received by analytical formulas based upon the Deutsch's-Popkov's assumption show that the difference between them varies from 0,3% at the surface of corona wire to 10,7% on the surface of the plane electrode.