What does aldrin mean?
Aldrin is a synthetic organochlorine insecticide developed in the mid-twentieth century and named after the German chemist Kurt Alder, who shared the 1950 Nobel Prize in Chemistry. It was prized for its effectiveness against soil-dwelling pests such as termites, wireworms, and rootworms, and was applied widely to crops like corn and potatoes as well as to timber and building foundations. However, aldrin is extremely persistent in the environment, accumulates in the fatty tissue of animals, and is toxic to humans, birds, and aquatic life; in the body it converts into an equally hazardous compound called dieldrin. Because of these dangers, aldrin was phased out across most of the world and is now listed among the 'dirty dozen' persistent organic pollutants targeted for elimination under the 2001 Stockholm Convention. Today the word appears chiefly in environmental science, toxicology, and regulatory literature, where it serves as a cautionary example of how long-lasting chemical residues can outlive their usefulness.
nounAldrin is a synthetic organochlorine insecticide formerly widely used to control soil-dwelling pests such as termites, beetles, and rootworms. It is highly persistent in the environment and toxic to humans and wildlife, and its agricultural use has been banned in most countries.
- A persistent synthetic organochlorine insecticide used against soil pests, now largely banned worldwide due to its toxicity and environmental persistence.
"Aldrin was once sprayed extensively on cornfields to protect the crop from rootworm."
"Farmers applied aldrin to the soil each spring to keep wireworms from destroying the potato crop."
"Residues of aldrin were still detectable in the river sediment decades after the pesticide had been banned."
As a specific chemical substance, aldrin is treated as an uncountable noun; quantities are expressed with units (e.g., 'traces of aldrin') rather than a plural form.
"Laboratory tests found measurable traces of aldrin in the groundwater."
The insecticide aldrin is named after Nobel laureate Kurt Alder — and it breaks down into its sister compound dieldrin, which is named after his fellow laureate Otto Diels.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of aldrin
The word aldrin was coined in the late 1940s by American chemists who synthesized the compound at Shell Development Company, honoring the German chemist Kurt Alder, co-discoverer of the Diels–Alder reaction on which the synthesis route depended. Its sister compounds were named analogously: dieldrin after Alder's collaborator Otto Paul Diels, and endrin and isodrin as further members of the same family. The '-drin' suffix thus became a recognizable marker of this group of cyclodiene insecticides.
How aldrin is actually used
Aldrin is a technical, scientific term encountered mainly in chemistry, agriculture, environmental science, and regulatory contexts rather than everyday conversation. It carries strongly negative connotations today because it belongs to the 'dirty dozen' persistent organic pollutants restricted by the 2001 Stockholm Convention. The word is uncountable in practice — it refers to a single specific chemical substance, not a class of things.
Easily confused with aldrin
Dieldrin is a closely related organochlorine insecticide that forms when aldrin oxidizes; the two names honor different German chemists — aldrin after Kurt Alder and dieldrin after Otto Diels.
"Aldrin" as a proper noun also refers to Buzz Aldrin, the Apollo 11 astronaut — the insecticide name predates his fame and derives from the chemist Kurt Alder instead.