mad-dog weed
Học thuậtThân thiện
Definition
Noun: 1. A North American perennial herb: Mad-dog weed is the common name for a plant species in the mint family (Lamiaceae), specifically Lycopus virginicus. It is characterized by its square stems, opposite leaves, and small white flowers. 2. A source of medicinal resin: Historically, this plant yielded a resinous substance used for its supposed therapeutic properties, particularly to treat conditions involving spasms or convulsions.
Usage Examples
- Noun:
- The herbalist collected mad-dog weed from the damp soil near the creek.
- In 19th-century medicine, a tincture made from mad-dog weed was sometimes administered.
Advanced Usage
- The name "mad-dog weed" is an example of a folk etymology or historical common name, reflecting its archaic use. Modern botanical and medical texts primarily use the plant's scientific name, , or the common name Virginia water horehound.
- The "mad-dog" part of the name likely originates from its historical, now obsolete, application in treatments for rabies (hydrophobia), which was once called "mad-dog disease."
Variants and Related Words
- Virginia water horehound: The more standard modern common name for the same plant ().
- Bugleweed: A common name that sometimes refers to plants in the same genus (), though it more accurately refers to plants in the genus .
- Lycopus virginicus: The scientific (Latin) binomial name for the species.
Synonyms
- Virginia water horehound
- (Historically) Bugleweed (this can be ambiguous)
Notes on Meaning
- The term is archaic and primarily of historical interest. It is not a standard term in contemporary horticulture, medicine, or general English.
- Its meaning is highly specific, referring only to this particular plant species and its historical use. It is not used idiomatically or in common phrases.
Noun
- an American mint that yields a resinous exudate used especially formerly as an antispasmodic