aflatoxin

Aflatoxins are naturally occurring mycotoxins that are produced by many species of Aspergillus, a fungus, most notably Aspergillus flavus and Aspergillus parasiticus. Aflatoxins are toxic and carcinogenic. After entering the body, aflatoxins are metabolized by the liver to a reactive intermediate, aflatoxin M1, an epoxide. Aflatoxin is frequently misspelled as alfatoxin.
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Aflatoxin /af·la·tox·in/ a toxin produced by Aspergillus flavus and A. parasiticus, molds which contaminate ground nut seedlings; it has been [more]Aflatoxin - Community and Resources

Noun
1. a potent carcinogen from the fungus Aspergillus; can be produced and stored for use as a bioweapon
(hypernym) mycotoxin

[AF-la-TOK-sin]
A harmful substance made by certain types of mold (Aspergillus flavus and Aspergillus parasiticus) that is often found on poorly stored grains and nuts. Consumption of foods contaminated with aflatoxin is a risk factor for primary liver cancer. 

aflatoxin