yellow rain

noun

: 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

Word History

First Known Use

1981, in the meaning defined above

Time Traveler
The first known use of yellow rain was in 1981

Dictionary Entries Near yellow rain

Cite this Entry

“Yellow rain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/yellow%20rain. Accessed 23 Apr. 2024.

Medical Definition

yellow rain

noun
: 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
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