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Widely applicable or effective: a broad-spectrum antibiotic.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Pharmacology) (modifier) effective against a wide variety of diseases or microorganisms: a broad-spectrum antibiotic.
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


1. (of an antibiotic) effective against a wide range of organisms.
2. having a wide range of uses.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
6, 2019 (HealthDay News) -- Overuse of broad-spectrum antibiotics is associated with increased mortality and other poor outcomes in adults admitted for community-onset pneumonia, according to a study published in the July 1 issue of the European Respiratory Journal.
Product: BIOBAN BZ Antimicrobial Attributes: BIOBAN BZ Antimicrobial is a MIT-free in-can preservative, offering broad-spectrum protection against bacteria and fungi due to ZPT and BIT actives.
Its sun care products provide broad-spectrum UVA and UVB protection.
Finally, they broke the type of antibiotics into narrow- or broad-spectrum, she said in an interview during the poster session.
According to Motif Bio, in contrast to commonly used broad-spectrum antibiotics, this 'precision medicine' approach is consistent with antibiotic stewardship principles which, among other things, seek to reduce the inappropriate use of broad-spectrum products to avoid the build-up of resistance and to lessen the impact on the microbiome of the patient.
The five classes were oral sulfas, cephalosporins, fluoroquinolones, nitrofurantoin, and broad-spectrum penicillins.
A large proportion of these preventive, or prophylactic, prescriptions also were for broad-spectrum antibiotics or combinations of antibiotics, or were for prolonged periods, which can hasten the development of antibiotic-resistant bacteria and drug-resistant infections.
Archaeologists explore the broad-spectrum hunter-gatherers who have come to be known as the American Southwest Archaic.
* Ashland Specialty Ingredients recently presented the merits of its Escalol S UV filter as an important ingredient in highly efficient broad-spectrum sun care products.
These are usually labeled broad-spectrum or multi-spectrum.
SAN DIEGO -- Narrow-spectrum antibiotics yield outcomes that are at least comparable to, if not better than, broad-spectrum antibiotics when prescribed to children with appendicitis, according to a retrospective cohort study presented at the annual meeting of the Pediatric Academic Societies.