adjective Date: 1952 effective against a wide range of organisms (as insects or bacteria) <
a broad-spectrum antibiotic

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • broad-spectrum — See spectrum. * * * broad spectrum adj effective against a wide range of organisms (as insects or bacteria) <broad spectrum antibiotics> compare NARROW SPECTRUM * * * effective against a wide range of microorganisms; said of an antibiotic.… …   Medical dictionary

  • broad-spectrum — adjective having a wide scope or range of activity Ant: narrow spectrum …   Wiktionary

  • broad-spectrum — /brawd spek treuhm/, adj. 1. Pharm. noting an antibiotic effective against a wide range of organisms. 2. having a wide range of uses. [1950 55] * * * …   Universalium

  • Broad-spectrum antibiotic — The term broad spectrum antibiotic refers to an antibiotic with activity against a wide range of disease causing bacteria. It is also means that it acts against both Gram positive and Gram negative bacteria. This is in contrast to a narrow… …   Wikipedia

  • Broad Spectrum Revolution — The broad spectrum revolution was the way people adapted to the end of an ice age in the post glacial environment. The broad spectrum revolution followed the ice age around 15,000 BP in the Middle East and 12,000 BP in Europe during a wide time… …   Wikipedia

  • Broad spectrum revolution — The Broad Spectrum Revolution (BSR) hypothesis, proposed by Kent Flannery in a 1968 paper presented to a London University symposium, [Kent Flannery, Origins and Ecological Effects of Early Domestication in Iran and the Near East, The… …   Wikipedia

  • broad-spectrum drugs — Chemotherapeutic agents that are effective against many different kinds of pathogens …   Dictionary of microbiology

  • broad-spectrum antibiotic — noun Any antibiotic that is active against a wide range of bacteria, especially against both gram positive and gram negative bacteria …   Wiktionary

  • spectrum — 1. The range of colors presented when white light is resolved into its constituent colors by being passed through a prism or through a diffraction grating : red, orange, yellow, green, blue, indigo, and violet …   Medical dictionary

  • spectrum — noun (plural spectra or spectrums) Etymology: New Latin, from Latin, appearance more at specter Date: 1671 1. a. a continuum of color formed when a beam of white light is dispersed (as by passage through a prism) so that its component wavelengths …   New Collegiate Dictionary

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