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- n. Any dichloro derivative of a phenol
Sorry, no etymologies found.
The typical smell of 2,4-D is the break-down product 2,4-dichlorophenol which is a suspected endocrine disrupter and possible carcinogen.
123, 323-332 (1982)  Liu, T.; Chapman, P.J.: Purification and properties of a plasmid-encoded 2,4 - dichlorophenol hydroxylase.