Cantharidin

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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]