toxicology

noun

tox·​i·​col·​o·​gy ˌtäk-si-ˈkä-lə-jē How to pronounce toxicology (audio)
: a science that deals with poisons and their effect and with the problems involved (such as clinical, industrial, or legal problems)
toxicologist noun

Did you know?

Even though most of us are aware of toxicology primarily from crime shows on TV, toxicologists actually do most of their work in other fields. Many are employed by drug companies, others by chemical companies. Many work for the government, making sure the public is being kept safe from environmental poisons in the water, soil, and air, as well as unhealthy substances in our food and drugs. These issues often have to do with quantity; questions about how much of some substance should be considered dangerous, whether in the air or in a soft drink, may be left to toxicologists. But occasionally a toxicology task may be more exciting: for instance, discovering that what looked like an ordinary heart attack was actually brought on by a hypodermic injection of a paralyzing muscle relaxant.

Examples of toxicology in a Sentence

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Sills said pathologists determined the couple drowned but are awaiting a toxicology report before releasing their findings. N'dea Yancey-Bragg, USA TODAY, 10 Mar. 2025 The Lake County Coroner’s Office performed an autopsy but said preliminary results were pending further medical studies and toxicology reports. Clifford Ward, Chicago Tribune, 7 Mar. 2025 After toxicology reports found traces of substances in the men's systems, many questions continued to remain unanswered. Rebecca Aizin, People.com, 6 Mar. 2025 That claim cannot be confirmed without an autopsy and toxicology report. Julia Coin, Charlotte Observer, 5 Mar. 2025 See All Example Sentences for toxicology

Word History

First Known Use

1799, in the meaning defined above

Time Traveler
The first known use of toxicology was in 1799

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Cite this Entry

“Toxicology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/toxicology. Accessed 14 Mar. 2025.

Medical Definition

toxicology

noun
tox·​i·​col·​o·​gy -ˈkäl-ə-jē How to pronounce toxicology (audio)
plural toxicologies
: the scientific study of the adverse effects of chemical substances on the living organism

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