[brawd-spek-truh m]


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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for broad-spectrum

Contemporary Examples of broad-spectrum

Historical Examples of broad-spectrum

  • Even the broad-spectrum drugs were losing their effectiveness to a dangerous degree within decades of their introduction.

    The Native Soil

    Alan Edward Nourse

British Dictionary definitions for broad-spectrum



(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