2,4-D

noun
\ ˌtü-ˌfȯr-ˈdē How to pronounce 2,4-D (audio) \

Definition of 2,4-D

: a white crystalline irritant compound C8H6Cl2O3 used especially as a weed killer

First Known Use of 2,4-D

circa 1945, in the meaning defined above

History and Etymology for 2,4-D

di-

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Time Traveler for 2,4-D

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

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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 16 Jan. 2021.

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More Definitions for 2,4-D

2,4-D

noun
\ ˌtü-ˌfōr-ˈdē, -ˌfȯr- How to pronounce 2,4-D (audio) \

Medical Definition of 2,4-D

: a white crystalline irritant compound C8H6Cl2O3 used as a weed killer

called also 2,4-dichlorophenoxyacetic acid

— see agent orange

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