1.NounA sylvan deity or demigod, male companion of Pan or Dionysus, represented as part man and part goat, and characterized by riotous merriment and lasciviousness, sometimes pictured with a perpetual erection.
2.NounSynonym of faun.
3.NounA lecherous man.
4.NounAny of various butterflies of the nymphalid subfamily Satyrinae, having brown wings marked with eyelike spots; a meadow brown.