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.
What sets it apart is a silky, hydrating formula featuring rice extract and probiotics to calm, nourish, and strengthen your skin barrier — all while offering broad-spectrum protection. R29 Team, refinery29.com, 29 Jan. 2025 Offering broad-spectrum protection with SPF 30, the tint is infused with lime tea concentrate to protect against a host of environmental aggressors. Kiana Murden, Vogue, 26 Jan. 2025 Afterward, apply a moisturizer to hydrate and finish with a broad-spectrum sunscreen (with SPF 30 or more) to shield against UV damage. Christa Joanna Lee, Allure, 23 Jan. 2025 Sunscreen: Apply a broad-spectrum sunscreen with a sun protection factor (SPF) of at least 30. Anna Giorgi, Verywell Health, 22 Jan. 2025 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 10 Feb. 2025.

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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