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DDT

1 ENTRIES FOUND:
DDT /ˌdiːˌdiːˈtiː/ noun
DDT
/ˌdiːˌdiːˈtiː/
noun
Learner's definition of DDT
[noncount]
: a poisonous chemical that was used especially in the past to protect plants from insects and that is now banned in the U.S.滴滴涕(旧时尤用作农业杀虫剂)
: 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

Word History

Etymology

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

First Known Use

1943, in the meaning defined above

Time Traveler
The first known use of DDT was in 1943

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