D defs.my
Entry 2 senses Webster, 1913

Horehound

/här'-houndˌ/ · Hore·hound · IPA /hˈɑrhˌaʊnd/
01 n. A plant of the genus Marrubium (Marrubium vulgare), which has a bitter taste, and is a weak tonic, used as a household remedy for colds, co…
  1. 1.
    A plant of the genus Marrubium (Marrubium vulgare), which has a bitter taste, and is a weak tonic, used as a household remedy for colds, coughing, etc.(Bot.)
  2. 2.
    A lozenge or tablet, usually sweetened, containing extract of horehound, used as a remedy for a cough or a sore throat.
Phrases & compounds
Fetid horehound — a disagreeable plant resembling horehound (Ballota nigra).
Water horehound — a species of the genus Lycopus, resembling mint, but not aromatic.