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dalapon

[dal-uh-pon]
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noun Chemistry.
  1. a selective herbicide, C3H4Cl2O2, used to eradicate certain grass weeds in sugarcane and other crops.
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Origin of dalapon

1950–55; probably d(i)-al(ph)a-(dichloropro)p(i)on(ic acid), an alternate chemical name; see di-1, alpha, chloro-2, propionic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018