Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: thistle  thi-sul
  1. Any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leaves

Derived forms: thistles

Type of: weed

Part of: aster family, Asteraceae, Compositae, family Asteraceae, family Compositae

Encyclopedia: Thistle, Ut