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.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

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]
Farlex Partner Medical Dictionary © Farlex 2012

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.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

corona of penis

A ridge of skin separating the penis head from the shaft, which corresponds to the “trailing” edge of the head.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

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]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

corona

Any structure resembling a crown.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

corona

a trumpet-shaped outgrowth of the PERIANTH, as in daffodil flowers.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

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]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
The appeal charged that the Ombudsman's request followed a 'prior illegal inquiry into respondents' alleged bank records' in violation of the Coronas' constitutional right to unreasonable searches and seizures.
Although only a small fraction of the jets may carry hot gas, calculations show that the features can transport enough high-temperature material to keep the corona heated to several million kelvins, says Bart De Pontieu of the Lockheed Martin Solar and Astrophysics Laboratory in Palo Alto, Calif.
In The Nature of Light and Color in the Outdoors, Marcel Minnaert mentions coronas in a clear sky but does not discuss their shape.
Somebody suffering from a hangover, for example, will have a less clear corona.
Advantages of corona over vacuum plasma are that coronas readily lend themselves to continuous production, whereas vacuum plasma is primarily a batch process.
In a motion to quash filed before the anti-graft Third Division, Corona through his lawyers said the information is defective because it does not prove the willfulness on the part of Corona to underdeclare his assets in his Statement of Assets and Liabilities Networth (SALN).
The corona extends at least 150,000 light-years above and below the plane of our spiral galaxy.
The government has so far secured only P10,000 of the P131 million worth of properties and assets of dismissed Chief Justice Renato Corona and his wife Cristina that the Sandiganbayan ordered frozen in May 2014.
Linsky says the surfaces of stars warmer than CN Leonis would be too bright for their coronas to be readily studied in the same way.