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broad-spectrum

American  
[brawd-spek-truhm] / ˈbrɔdˈspɛk trəm /

adjective

  1. noting an antibiotic, insecticide, or other chemical effective against a wide range of organisms.

  2. noting a sunscreen effective in absorbing or blocking ultraviolet (UVA and UVB) radiation.

  3. having a wide range of uses.

    The questionnaire is a broad-spectrum tool for diagnosing depression and anxiety.
broad-spectrum British  

noun

  1. (modifier) effective against a wide variety of diseases or microorganisms

    a broad-spectrum antibiotic
"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

Etymology

Origin of broad-spectrum

First recorded in 1950–55

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.