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]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]