Pronunciation: (thûr'sus), [key]
—pl. -siPronunciation: (-sī). [key]
1. Bot.a thyrse.
2. Gk. Antiq.a staff tipped with a pine cone and sometimes twined with ivy and vine branches, borne by Dionysus and his votaries.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.