Best definition
This is a substance released by the bacterium Clostridium botulinum. A zymotoxinogen is an enzyme (zymo) toxin that must be

cleaved to generate (gen) the active enzyme.Botulin toxins act as proteolytic enzymes, blocking the release of acetylcholine.So, you can become paralyzed from food poisoning after eating bad canned goods.

The albino zebra ate some bad canned goods and contracted food poisoning. Curse those zymotoxinogens!