'Butterbur' definitions:
Definition of 'butterbur'
(from WordNet)
noun
Small Eurasian herb having broad leaves and lilac-pink rayless flowers; found in moist areas [syn: butterbur, bog rhubarb, Petasites hybridus, Petasites vulgaris]
Definition of 'Butterbur'
From: GCIDE
- Butterbur \But"ter*bur`\, n. (Bot.) A broad-leaved plant (Petasites vulgaris) of the Composite family, said to have been used in England for wrapping up pats of butter. [1913 Webster]