This is the 6309th most frequent Portuguese word.
ddt
DDT: A synthetic chemical compound (dichlorodiphenyltrichloroethane) used as an insecticide, now banned in many countries due to its environmental and health impacts.
In this sentence, "ddt" is used as the name of a chemical compound specifically a pesticide.
O ddt foi amplamente usado como pesticida no século passado.
DDT was widely used as a pesticide in the past century.
Here, "ddt" is referenced with regards to its environmental impact.
A discussão sobre os efeitos do ddt no meio ambiente continua relevante.
The discussion about the effects of DDT on the environment remains relevant.
In this context, "ddt" is associated with scientific studies and its longevity in ecological systems.