Definition: Anthrachrysone refers to a substance that causes a person's body to produce more white blood cells, such as neutrophils and eosinophils, which can cause inflammation in the body. Definition: Anthrachrysone is an inflammatory response caused by excessive production of white blood cells. White blood cells are important for fighting off infections and diseases, so when they grow too high, it's called anthrax or anthrax-like symptoms.