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crop-dusting

[krop-duhs-ting]
noun
  1. the spraying of powdered fungicides or insecticides on crops, usually from an airplane.
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crop-dust

[krop-duhst]
verb (used with object)
  1. to subject (a field) to crop-dusting.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for crop-dusting

crop-dusting

noun
  1. the spreading of fungicide, etc on crops in the form of dust, often from an aircraft
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012