Definitions

1. noun

A synthetic insecticide used in the past to kill insects and other arthropods, now banned in many countries due to its toxic effects.

“The old farm used DDT to control pests until it was discovered to be harmful to the environment.”

2. abbreviation

Dichlorodiphenyltrichloroethane, a chemical compound.

“The chemistry textbook listed DDT as an example of a synthetic insecticide.”

3. verb

To kill or control pests using DDT.

“The farmer decided to DDT the fields to get rid of the weeds and insects.”