philanderer

from WordNet (r) 3.0 (2006)

philanderer
    n 1: a man who likes many women and has short sexual
         relationships with them [syn: {womanizer}, {womaniser},
         {philanderer}]

from The Collaborative International Dictionary of English v.0.48

Philanderer \Phi*lan"der*er\, n.
   One who hangs about women; a male flirt. [R.] --C. Kingsley.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

55 Moby Thesaurus words for "philanderer":
      Casanova, Don Juan, Lothario, Romeo, amoroso, beau, boyfriend,
      caballero, cavalier, cavaliere servente, chaser, debauchee,
      esquire, fellow, flame, flirt, gallant, gay deceiver, gay dog,
      gigolo, heartbreaker, inamorato, lady-killer, lecher, libertine,
      love-maker, lover, lover-boy, man, masher, necker, old man, petter,
      philander, playboy, profligate, rake, rakehell, rip, roue, rounder,
      seducer, sheik, skirt chaser, squire, stud, sugar daddy, swain,
      swinger, walking phallus, wanton, wolf, woman chaser, womanizer,
      young man