Corona

Pronunciation: k?-r?"n?
n. pl. L. Coronæ (-n), E. Coronas (-nz).

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. (Zoöl.) The shelly skeleton of a sea urchin.
5. (Astronomy) 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 character [&pause_;] called the pause or hold.
1. An inner appendage to a petal or a corolla, often forming a special cup, as in the daffodil and jonquil.
2. Any crownlike appendage at the top of an organ.
3. A circle, usually colored, seen in peculiar states of the atmosphere around and close to a luminous body, as the sun or moon.
4. A peculiar phase of the aurora borealis, formed by the concentration or convergence of luminous beams around the point in the heavens indicated by the direction of the dipping needle.