broad-spectrum

adjective

broad-spec·​trum ˈbrȯd-ˈspek-trəm How to pronounce broad-spectrum (audio)
1
: effective against a wide range of organisms (such as insects or bacteria)
a broad-spectrum antibiotic
2
: effective in protecting skin from ultraviolet radiation by absorbing or blocking both UVA and UVB rays
broad-spectrum sunscreens

Examples of broad-spectrum in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Jack Black’s Intense Therapy Lip Balm offers broad-spectrum sun protection (SPF 25) while soothing and hydrating with shea butter and avocado oil. Emily Cegielski, Flow Space, 5 Dec. 2024 No matter your skin type, a broad-spectrum SPF is essential, as UV damage can weaken skin structure and prevent pores from looking refined. Christa Joanna Lee, Allure, 3 Dec. 2024 Each treat, whether hard or soft, contains 20mg of broad-spectrum CBD, promoting healthier skin and calming side effects. Lydia Kariuki, The Mercury News, 3 Dec. 2024 Tetracycline is a common broad-spectrum antibiotic used to treat everything from syphilis to bacterial skin and lung infections. Joe Salas, New Atlas, 3 Nov. 2024 See all Example Sentences for broad-spectrum 

Word History

First Known Use

1950, in the meaning defined at sense 1

Time Traveler
The first known use of broad-spectrum was in 1950

Dictionary Entries Near broad-spectrum

Cite this Entry

“Broad-spectrum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/broad-spectrum. Accessed 21 Dec. 2024.

Medical Definition

broad-spectrum

adjective
1
: effective against a wide range of organisms (as insects or bacteria)
broad-spectrum antibiotics
compare narrow-spectrum
2
: effective in protecting skin from ultraviolet radiation by absorbing or blocking both UVA and UVB rays
broad-spectrum suncreen
Last Updated: - Updated example sentences
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