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Forbush decrease

American  
[fawr-boosh] / ˈfɔr bʊʃ /

noun

Astronomy.

  1. the sudden decrease in the intensity of cosmic rays after an increase in solar activity.

Etymology

Origin of Forbush decrease

First recorded in 1930–35; named after Scott E. Forbush (1904–84), U.S. physicist

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.