- To carry on a sexual affair, especially an extramarital affair, with a woman one cannot or does not intend to marry. Used of a man.
- To engage in many love affairs, especially with a frivolous or casual attitude. Used of a man.
[From philander, lover, from Philander, former literary name for a lover, from Greek philandros, loving or fond of men : phil-, philo-, philo- + anēr, andr-, man.]
philanderer phi·lan'der·er n.




