ddt
Definition
Noun: A synthetic chemical compound historically used as a powerful insecticide. Its full chemical name is dichlorodiphenyltrichloroethane. DDT is known for its persistence in the environment, its ability to accumulate in the food chain, and its toxic effects on wildlife and human health, leading to its ban in many countries.
Usage Examples
- Noun:
- The widespread use of DDT in the mid-20th century effectively controlled malaria-carrying mosquitoes.
- Environmental studies showed that DDT accumulated in the tissues of birds of prey, causing eggshell thinning.
- Many countries implemented a ban on DDT due to its long-term ecological and health impacts.
Advanced Usage
- "The legacy of DDT": Refers to the long-lasting environmental and health consequences of its historical use.
- The documentary explored the legacy of DDT in the ecosystem decades after its ban.
- "DDT resistance": Describes the phenomenon where insect populations evolve to survive exposure to the insecticide.
- The emergence of DDT resistance in mosquitoes complicated malaria eradication efforts.
Variants and Related Words
- Insecticide (n): A general term for a substance used to kill insects.
- Organochlorine (n/adj): A class of chemical compounds to which DDT belongs, characterized by their chlorine content and environmental persistence.
- POP (Persistent Organic Pollutant) (n): A category of toxic, long-lasting chemicals that includes DDT.
Synonyms
- Dichlorodiphenyltrichloroethane: The full chemical name.
- Organochlorine insecticide: A categorical synonym describing its chemical class and function.
Related Phrases
- "To spray DDT": The common historical method of application.
- Authorities would spray DDT extensively in residential areas.
- "DDT contamination": Refers to the presence of DDT in the environment or in organisms.
- Scientists tested the soil for DDT contamination.
Related Concepts
- Bioaccumulation: The process by which DDT and similar toxins build up in an organism over time.
- Biomagnification: The increasing concentration of a substance, such as DDT, at each successive level of the food chain.
- Environmental persistence: The key characteristic of DDT, meaning it does not break down easily in nature.
Noun
-
an insecticide that is also toxic to animals and humans; banned in the United States since 1972
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