The word "anatoxic" is spelled as /ænəˈtɒksɪk/. The first syllable, "an," is pronounced as "æn" and means "without." The second syllable, "atox," is pronounced as "əˈtɒks" and is derived from "toxic," meaning poisonous. The last syllable, "ic," is pronounced as "ɪk" and indicates that something is related to or characteristic of a certain quality. All in all, "anatoxic" refers to something that is not poisonous, which makes it an important word in medical and scientific contexts.
V. Behring's term for the pathogenic action of a substance which is observed only after its repeated introduction into the body, this phenomenon being called anaphylaxis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.