- Pharmacology. noting an antibiotic effective against a wide range of organisms.
- having a wide range of uses.
Origin of broad-spectrum
First recorded in 1950–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for broad-spectrum
In other words, fluoride is a broad-spectrum, bipartisan, long-lasting magnet for dissent.Anti-Fluoriders Are The OG Anti-Vaxxers
July 27, 2016
Even the broad-spectrum drugs were losing their effectiveness to a dangerous degree within decades of their introduction.The Native Soil
Alan Edward Nourse
- (modifier) effective against a wide variety of diseases or microorganismsa broad-spectrum antibiotic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012