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yellow rain

small, powdery yellow deposits containing the fungal toxin tricothecene, found on leaves and other surfaces in Southeast Asia and Afghanistan in the early 1980s and alleged by some to be a chemical weapon disseminated by air but claimed by others to be pollen-containing bee excrement contaminated by fungus.
1975-80 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for yellow rain
  • Lily's pen, all the rain in the universe dripping from the brim of my silly yellow rain.
  • In inclement weather, employees wore standard yellow rain gear.
British Dictionary definitions for yellow rain

yellow rain

a type of yellow precipitation described in parts of SE Asia and alleged by some to be evidence of chemical warfare using mycotoxins
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
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Encyclopedia Article for yellow rain

airborne substance that was alleged to have been used in biological attacks in Southeast Asia from the mid-1970s to the mid-1980s.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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