2,4-D

noun

ˌtü-ˌfȯr-ˈdē 

: 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

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- 

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

called also 2,4-dichlorophenoxyacetic acid

see agent orange