phallotoxin
/ˌfalə(ʊ)ˈtɒksɪn/Chemistry
noun
Any of several closely related poisonous peptides present in the death cap toadstool, Amanita phalloides, all of which have a similar ring structure of seven amino acids bridged by a sulphur atom.
Origin
1960s. From scientific Latin phallo- + toxin.