Pronunciation: (sī-lē'nus), [key]
—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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.