broad-spectrum

adjective

broad-spec·​trum ˈbrȯd-ˈspek-trəm 

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

Since homemade sunscreens are not subject to the same rigorous testing and regulation as commercial products, their sun protection factor (SPF) and broad-spectrum protection cannot be verified. —Alyssa Hui, Verywell Health, 22 July 2024

Do: Choose a broad-spectrum SPF To protect skin against both UVA and UVB light, both of which cause damage to the skin, broad-spectrum SPF is a must. —Hannah Coates, Vogue, 20 July 2024

Best Prime Day deals to shop Neutrogena Invisible Daily Defense SPF 60 Face Sunscreen + Hydrating Serum 34% OFF This lightweight facial sunscreen provides SPF 60 broad-spectrum protection from harmful UVA/UVB rays. —Bestreviews, Orlando Sentinel, 17 July 2024

General guidance is for people — regardless of skin color — to use a broad-spectrum sunscreen (this blocks both UVA and UVB rays) with an SPF of at least 30, according to the American Academy of Dermatology Association. —Susmita Baral, Travel + Leisure, 11 July 2024

Word History

First Known Use

1950, in the meaning defined at sense 1

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