Source : Webster's Revised Unabridged Dictionary (1913)

Prominent \Prom"i*nent\, a. [L. prominens, -entis, p. pr. of
   prominere to jut out, to project; pro before, forward +
   minere (in comp.) to jut, project: cf. F. prominent. See
   {Imminent}, {Eminent}.]
   1. Standing out, or projecting, beyond the line surface of
      something; jutting; protuberant; in high relief; as, a
      prominent figure on a vase.

   2. Hence; Distinctly manifest; likely to attract attention
      from its size or position; conspicuous; as, a prominent
      feature of the face; a prominent building.

   3. Eminent; distinguished above others; as, a prominent
      character.

   {Prominent' moth} (Zo["o]l.), any moth of the family
      {Notodontid[ae]}; a notodontian; -- so called because the
      larva has a hump or prominence on its back. Several of the
      species are injurious to fruit trees.