say it: tahk-si-KAH-luh-jee
toxicology is a noun meaning "the branch of pharmacology that deals with the nature and effects and treatments of poisons". It carries one recorded sense.
the branch of pharmacology that deals with the nature and effects and treatments of poisons
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for toxicology come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.