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(k?-r?"n?), n.; pl. L. Coron (-n), E. Coronas (-nz). [L. corona crown. See Crown.] 1. A crown or garland bestowed among the Romans as a reward for distinguished services. 2. (Arch.) The projecting part of a Classic cornice, the under side of which is cut with a recess or channel so as to form a drip. See Illust. of Column. 3. (Anat.) The upper surface of some part, as of a tooth or the skull; a crown. 4. (Zol.) The shelly skeleton of a sea urchin. 5. (Astrol.) A peculiar luminous appearance, or aureola, which surrounds the sun, and which is seen only when the sun is totally eclipsed by the moon. 6. (Bot.) (a) An inner appendage to a petal or a corolla, often forming a special cup, as in the daffodil and jonquil. (b) Any crownlike appendage at the top of an organ. 7. (Meteorol.) (a) A circle, usually colored, seen in peculiar states of the atmosphere around and close to a luminous body, as the sun or moon. (b) A peculiar phase of the aurora borealis, formed by the concentrat スポンサード リンク
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