Dictionary
this•tle
Pronunciation: (this'ul), [key]—
n.
1. any of various prickly, composite plants having showy, purple flower heads, esp. of the genera
Cirsium, Carduus, or
Onopordum.
2. any of various other prickly plants.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.