This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Any of a group of neurotoxins produced by several species of cyanobacterium

n. a bacterial toxin that has been weakened until it is no longer toxic but is strong enough to induce the formation of antibodies and immunity to the specific disease caused by the toxin

"Another round of tests released today again found microcystin, a liver toxin, and a neurotoxin called anatoxin-a."

bacterial toxin    antigen   

Anatolian    aflatoxin    anatomic    antitoxin