tox·i·col·o·gy 
/ˌtɑ:ksəˈkɑ:ləʤi/ noun
/ˌtɑ:ksəˈkɑ:ləʤi/ noun [noncount] technical : the study of poisonous chemicals, drugs, etc., and how a person or other living thing reacts to them — often used before another noun ▪ Toxicology reports indicate he died from a drug overdose.
— tox·i·col·o·gist /ˌtɑ:ksəˈkɑ:ləʤɪst/ noun, plural tox·i·col·o·gists [count]
/ˌtɑ:ksəˈkɑ:ləʤɪst/ noun, plural tox·i·col·o·gists [count]
