Source : Webster's Revised Unabridged Dictionary (1913)

Prominence \Prom"i*nence\, Prominency \Prom"i*nen*cy\, n. [L.
   prominentia: cf. F. prominence. See {Prominent}. ]
   1. The quality or state of being prominent; a standing out
      from something; conspicuousness.

   2. That which is prominent; a protuberance.

   {Solar prominences}. (Astron.) See {Solar Protuberances},
      under {Protuberance}.