DDT

noun
\ ˌdē-(ˌ)dē-ˈtē How to pronounce DDT (audio) \

Definition of DDT

: 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

First Known Use of DDT

1943, in the meaning defined above

History and Etymology for DDT

dichlor- + diphenyl + trichlor- (from tri- + chlor-)

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Dictionary Entries near DDT

DDoS

DDS

DDSc

DDT

D duct

DDVP

DE

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Statistics for DDT

Cite this Entry

“DDT.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/DDT. Accessed 8 Mar. 2021.

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More Definitions for DDT

DDT

noun

English Language Learners Definition of DDT

: a poisonous chemical that was used especially in the past to protect plants from insects and that is now banned in the U.S.

DDT

noun
\ ˌdē-ˌdē-ˈtē How to pronounce DDT (audio) \

Kids Definition of DDT

: a chemical that was used as an insecticide until it was found to damage the environment

DDT

noun
\ ˌdē-(ˌ)dē-ˈtē How to pronounce DDT (audio) \

Medical Definition of DDT

: 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

More from Merriam-Webster on DDT

Nglish: Translation of DDT for Spanish Speakers

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