: an irritant crystalline compound C8H5Cl3O3 used especially formerly chiefly as an herbicide and defoliant

Word History

Etymology

tri-

First Known Use

1946, in the meaning defined above

Time Traveler
The first known use of 2,4,5-T was in 1946

Dictionary Entries Near 2,4,5-T

Cite this Entry

“2,4,5-T.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/2%2C4%2C5-T. Accessed 1 Feb. 2023.

Medical Definition

2,4,5-T

noun
: an irritant compound C8H5Cl3O3 used especially formerly as an herbicide and defoliant

called also trichlorophenoxyacetic acid

see agent orange
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