DDD

American  

abbreviation

Chemistry.

1. dichlorodiphenyldichloroethane: a colorless or white crystalline metabolite of DDT, C 14 H 10 Cl 4 , used as an insecticide: agricultural use is prohibited in the United States.

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Etymology

Origin of DDD

First recorded in 1945–50

Example Sentences

The researchers tested AIM's clinical exome reanalysis on a dataset of UDN and DDD cases and found that it was able to correctly identify 57% of diagnosable cases.

From Science Daily • Apr. 25, 2024

The brand has historically offered up to a size DDD, with sizes in the D range difficult to find in stock.

From Slate • Jun. 17, 2021

Following a third assault on the ever-resilient gnat population, in September, 1957—again in a concentration of one part of DDD to fifty million parts of water—more grebes died.

From The New Yorker • Jan. 3, 2017

My sense of Palestine in the late 1940s is courtesy of DDD.

From Time • Jan. 23, 2016

And even the thirty seem to have nested in vain, for no young grebes have been observed on the lake since the last DDD application.

From "Silent Spring" by Rachel Carson