also  hoar*hound  n 1  :  a European aromatic mint (Marrubium vulgare) that is naturalized in the U.S., has pubescent leaves and small axillary flowers, has a very bitter taste, and is used as a tonic and anthelmintic - called also white horehound   2  :  an extract or confection made from horehound and used as a remedy for coughs and colds .
 
 
 
Similar sounding terms:  hoarhound 
 
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