yellow rain

yellow rain

noun \-ˈrān\

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

Seen & Heard

What made you want to look up yellow rain? Please tell us where you read or heard it (including the quote, if possible).