broad-spectrum

adjective
broad-spec·​trum | \ ˈbrȯd-ˈspek-trəm How to pronounce broad-spectrum (audio) \

Definition of broad-spectrum

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

First Known Use of broad-spectrum

1950, in the meaning defined at sense 1

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The first known use of broad-spectrum was in 1950

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Cite this Entry

“Broad-spectrum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/broad-spectrum. Accessed 21 Sep. 2020.

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More Definitions for broad-spectrum

broad-spectrum

adjective

Medical Definition of broad-spectrum

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

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