Pronunciation: (sī-lē'nus),[key] —n., —pl.-niPronunciation: (-nī)[key]for 2.Class. Myth. 1. a forest spirit, sometimes referred to as the oldest of the satyrs and the foster father, teacher, and companion of Dionysus: often represented as a bearded old man.
2. (l.c.) any of a group of forest spirits similar to satyrs: often represented as a drunken old man with the legs and ears of a horse. Also,Silenos,Seilenos.