yellow rain
nounDefinition of yellow rain
: a yellow substance that has occurred in southeastern Asia as a mist or as spots on rocks and vegetation and has been held to be a biological warfare agent used in the Vietnam War but appears upon scientific examination to be identical to pollen-laden bee feces
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More Definitions for yellow rain
yellow rain
noun
\ -ˈrān
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Medical Definition of yellow rain
: a yellow substance that has occurred in southeastern Asia as a mist or as spots on rocks and vegetation and has been held to be a biological warfare agent used in the Vietnam War but appears upon scientific examination to be identical to the pollen-laden feces of bees