Source : Webster's Revised Unabridged Dictionary (1913)

Popularize \Pop"u*lar*ize\, v. t. [imp. & p. p. {Popularized};
   p. pr. & vb. n. {Popularizing}.] [Cf. F. populariser.]
   To make popular; to make suitable or acceptable to the common
   people; to make generally known; as, to popularize
   philosophy. ``The popularizing of religious teaching.''
   --Milman.

Source : WordNet®

popularize
     v 1: cater to popular taste to make popular and present to the
          general public; bring into general or common use; "They
          popularized coffee in Washington State"; "Relativity
          Theory was vulgarized by these authors" [syn: {popularise},
           {vulgarize}, {vulgarise}, {generalize}, {generalise}]
     2: make understandable to the general public; "Carl Sagan
        popularized cosmology in his books" [syn: {popularise}]