A large, round, pendent chandelier, with spikes around its upper rim to hold candles or lamps, usually hung from the roof of a church. • An upper or crownlike portion of certain parts of the body. • A region of the skull located along the coronal suture, at the junction between the frontal bone and the two parietal bones. • The external (supragingival) portion of the tooth, covered by enamel; the crown. • The circumference of the base of the glans penis in human males. • The large, flat, projecting member of a cornice which crowns the entablature, situated above the bed moulding and below the cymatium. • The luminous plasma atmosphere of the Sun (the solar corona) or other star, extending millions of kilometres into space, most easily seen during a total solar eclipse. • 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. • Any luminous or crownlike ring around an object or person. • Any appendage of an organism that resembles a crown or corona (sense 4.1). • A ring or set of appendages of adaxial tissue arising from the corolla or the outer edge of the stamens, present in some plants (Narcissus, Passiflora, etc.); a paraperigonium or paracorolla. • An annular ciliated organ on the head of rotifers, used for locomotion and sweeping food into the mouth. • The main body of the test of an echinoid, consisting of ambulacral and interambulacral areas. • The crown of a crinoid, consisting of a cuplike central body (theca) and a set of arms. • A fringe of large, bulbous surface projections on coronaviruses, formed by viral spike peplomers, creating an appearance reminiscent of the solar corona. • A luminous appearance caused by corona discharge, often seen as a bluish glow in the air adjacent to pointed metal conductors carrying high voltages. • 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. • 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. • A manifestation of secondary syphilis, consisting of papular lesions along the hairline, often bordering the scalp in the manner of a crown. • A crown or garland bestowed among the Romans as a reward for distinguished services.