Arcus Definition

noun

(medicine) A white band of cholesterol that forms at the edge of the cornea.

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(meteorology) A low, horizontal cloud typically forming at the leading edge of thunderstorm outflow.

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(entomology) An elastic band around the base of the arolium, a pad at the end of the leg of certain insects.

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(palynology, plural sometimes arci) An arc-shaped band of thickened sexine extending between two apertures on a pollen grain or spore.

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Synonyms:

Origin of Arcus

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