Word Finder - coronae

definition

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

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A circle or set of circles visible around a bright celestial object, especially the Sun or the Moon, attributable to an optical phenomenon produced by the diffraction of its light by small water droplets or tiny ice crystals.

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(by extension) Any luminous or crownlike ring around an object or person.

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A luminous appearance caused by corona discharge, often seen as a bluish glow in the air adjacent to pointed metal conductors carrying high voltages.

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The large, flat, projecting member of a cornice which crowns the entablature, situated above the bed moulding and below the cymatium.

synonyms

• drip
• larmier

definition

A large, round pendent chandelier, with spikes around its upper rim to hold candles or lamps, usually hung from the roof of a church.

synonyms

• corona lucis

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

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Any appendage of an organism that resembles a crown or corona.

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An upper or crownlike portion of certain parts of the body.

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A manifestation of secondary syphilis, consisting of papular lesions along the hairline, often bordering the scalp in the manner of a crown.

synonyms

• corona veneris
• crown of Venus

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An oval-shaped astrogeological feature, present on both the planet Venus and Uranus's moon Miranda, probably formed by upwellings of warm material below the surface.

definition

A mineral zone, consisting of one or more minerals, which surrounds another mineral or lies at the interface of two minerals, typically in a radial arrangement; a reaction rim.

Women's ornaments consisted of brooches (fibulae), bracelets (armillae), armlets (armillae, bracchialia), ear-rings (inliures), necklaces (monilia), wreaths (coronae) and hair-pins (crinales).

The crowns suspended in churches suggested doubtless the sumptuous pensile luminaries, frequently designated from a very early period as coronae, in which the form of the royal circlet was preserved in much larger proportions, as exemplified by the remarkable corona still to be seen suspended in the cathedral at Aix-laChapelle over the crypt in which the body of Charlemagne was deposited."

On the 18th of May 1866 he made the first spectroscopic examination of a temporary star (Nova Coronae), and found it to be enveloped in blazing hydrogen.

In the first class we have halos, and coronae, or "glories," which encircle the luminary; the second class includes rainbows, fog-bows, mist-halos, anthelia and mountainspectres, whose centres are at the anti-solar point.

Here it is only necessary to distinguish halos from coronae.

In physical science, coronae (or "glories") are the coloured rings frequently seen closely encircling the sun or moon.

Formerly classified by the ancient Greeks with halos, rainbows, &c., under the general group of "meteors," they came to receive considerable attention at the hands of Descartes, Christiaan Huygens, and Sir Isaac Newton; but the correct explanation of coronae was reserved until the beginning of the 19th century, when Thomas Young applied the theories of the diffraction and interference of light to this phenomenon.

Prior to Young, halos and coronae had not been clearly differentiated; they were both regarded as caused by the refraction of light by atmospheric moisture and ice, although observation had shown that important distinctions existed between these phenomena.

It has now been firmly established, both experimentally and mathematically, that coronae are due to diffraction by the minute particles of moisture and dust suspended in the atmosphere, and the radii of the rings depend on the size of the diffracting particles.

These appear ancos differ from halos and coronae inasmuch as their centres are at the anti-solar point; they thus resemble the rainbow.

Of Hale's legal works the only two of importance are his Historia placitorum coronae, or History of the Pleas of the Crown (1736);; and the History of the Common Law of England, with an Analysis of the Law, &c. (1713).

The single digit consists of a moderate-sized proximal (os suffraginis, or large pastern), a short middle (os coronae, or small pastern), and a wide, semi-lunar, ungual phalanx (os pedis, or coffin bone).

Coronae have an intensely bright central aureole which is almost white and fringed with yellows and reds.

A white light corona is the sum of all the coronae contributions from each spectral color.

That information enables us to compare stellar coronae with the solar corona.