DDT
noun
: a colorless odorless water-insoluble insecticide C14H9Cl5 that is an aromatic organochlorine banned in the U.S. that tends to accumulate and persist in ecosystems and has toxic effects on many vertebrates
Examples of DDT in a Sentence
Recent Examples on the Web
After the match, Asuka planted Ripley with a DDT on the announce table.
—
Fernando Quiles Jr, MSNBC Newsweek, 16 Oct. 2025
Though the ancient species once soared over most of the continent, by the mid-20th century, the population of condors had dramatically declined due to habitat degradation, lead poisoning, shooting and the use of DDT pesticide.
—John Leos, AZCentral.com, 1 Oct. 2025
While the researchers didn’t identify the exact chemicals present in the barrels, alkaline waste was produced in DDT manufacturing, as well as oil refining — both prominent industries in the region in the mid-20th century.
—Maura Fox, San Diego Union-Tribune, 11 Sep. 2025
Scientists had initially linked the halos, observed in images captured in 2020, to the toxic pesticide DDT, whose manufacturing processes unleashed copious amounts of acidic waste into the ocean from the 1930s through the 1970s.
—Sharon Udasin, The Hill, 9 Sep. 2025
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Fernando Quiles Jr, MSNBC Newsweek, 16 Oct. 2025
Though the ancient species once soared over most of the continent, by the mid-20th century, the population of condors had dramatically declined due to habitat degradation, lead poisoning, shooting and the use of DDT pesticide.
—John Leos, AZCentral.com, 1 Oct. 2025
While the researchers didn’t identify the exact chemicals present in the barrels, alkaline waste was produced in DDT manufacturing, as well as oil refining — both prominent industries in the region in the mid-20th century.
—Maura Fox, San Diego Union-Tribune, 11 Sep. 2025
Scientists had initially linked the halos, observed in images captured in 2020, to the toxic pesticide DDT, whose manufacturing processes unleashed copious amounts of acidic waste into the ocean from the 1930s through the 1970s.
—Sharon Udasin, The Hill, 9 Sep. 2025
See All Example Sentences for DDT
Cite this Entry
“DDT.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/DDT. Accessed 19 Oct. 2025.
Copy CitationKids Definition
DDT
noun
: a colorless formerly used insecticide that is poisonous to many animals with backbones
Medical Definition
DDT
noun
: a colorless odorless water-insoluble crystalline insecticide C14H9Cl5 that tends to accumulate in ecosystems and has toxic effects on many vertebrates
called also chlorophenothane, dicophane
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