2,4-D

noun

ˌtü-ˌfȯr-ˈdē How to pronounce 2,4-D (audio)
: a white crystalline irritant compound C8H6Cl2O3 used especially as a weed killer

Word History

Etymology

di-

First Known Use

circa 1945, in the meaning defined above

Time Traveler
The first known use of 2,4-D was circa 1945

Dictionary Entries Near 2,4-D

24-7

2,4-D

2D

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Cite this Entry

“2,4-D.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/2%2C4-D. Accessed 29 Nov. 2024.

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Kids Definition

2, 4-D

noun
ˌtü-ˌfōr-ˈdē,
-ˌfȯr-
: a white compound used as a weed killer

Medical Definition

2,4-D

noun
ˌtü-ˌfōr-ˈdē, -ˌfȯr- How to pronounce 2,4-D (audio)
: a white crystalline irritant compound C8H6Cl2O3 used as a weed killer

called also 2,4-dichlorophenoxyacetic acid

see agent orange

More from Merriam-Webster on 2,4-D

Britannica.com: Encyclopedia article about 2,4-D

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