Origin and Etymology of ddt
First Known Use: 1943See Words from the same year
DDT Defined for English Language Learners
Definition of DDT for English Language Learners
: 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 Defined for Kids
Definition of DDT for Students
medical Definition of DDT
Seen and Heard
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