|(Astron.)||certain rose-colored masses on the limb of the sun which are seen to extend beyond the edge of the moon at the time of a solar eclipse. They may be discovered with the spectroscope on any clear day. Called also solar prominences. See Illust. in Append.|
See also: Protuberance
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.