<astronomy> Solar protuberances, certain rose-coloured 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.
Synonyms: Projection, Protuberance.
Origin: Cf. F. Protuberance. See Protuberant.
(01 Mar 1998)
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