Search Result for "cantharidin": 

The Collaborative International Dictionary of English v.0.48:

Cantharidin \Can*thar"i*din\ (k[a^]n*th[a^]r"[i^]*d[i^]n), n. (Chem.) The active principle of the cantharis, or Spanish fly, a volatile, acrid, bitter solid, crystallizing in four-sided prisms. [1913 Webster]