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A circular band of coloured light, visible around the sun or moon etc., caused by reflection and refraction of light by ice crystals in the atmosphere.
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A cloud of gas and other matter surrounding and captured by the gravitational field of a large diffuse astronomical object, such as a galaxy or cluster of galaxies.
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Anything resembling this band, such as an effect caused by imperfect developing of photographs.
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Nimbus, a luminous disc, often of gold, around or over the heads of saints, etc., in religious paintings.
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The metaphorical aura of glory, veneration or sentiment which surrounds an idealized entity.
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(iconography) a circular annulus ring, frequently luminous, often golden, floating above the head
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A circular brace used to keep the head and neck in position.
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A rollbar placed in front of the driver, used to protect the cockpit of a open cockpit racecar.