˜yÐÄvlog

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broad-spectrum

[ brawd-spek-truhm ]

adjective

  1. noting an antibiotic, insecticide, or other chemical effective against a wide range of organisms.
  2. noting a sunscreen effective in absorbing or blocking ultraviolet (UVA and UVB) radiation.
  3. having a wide range of uses:

    The questionnaire is a broad-spectrum tool for diagnosing depression and anxiety.



broad-spectrum

noun

  1. modifier effective against a wide variety of diseases or microorganisms

    a 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
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˜yÐÄvlog History and Origins

Origin of broad-spectrum1

First recorded in 1950–55
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Example Sentences

Examples have not been reviewed.

Spending long hours reading research on LAB amid a particularly disheartening breakout, I became fixated on the idea that the key to clearer skin lay in the strategic inclusion of beneficial bacteria through probiotics rather than the indiscriminate eradication of bacteria through broad-spectrum antibiotics.

From

Look for broad-spectrum sunscreen with an SPF of 30 or higher; it should be worn daily and reapplied every couple of hours.

From

The widespread use of broad-spectrum antibiotics - they target many bacteria types but can kill good bacteria, cause side-effects and increase antibiotic resistance - fuels drug resistance by encouraging the emergence of drug resistant bacterial mutants.

From

"Virtually all antibiotics are A-bombs. They are broad-spectrum and we use them in such high doses that they eradicate nearly everything in and around them, notably bacteria that protect us. That's a problem," said Mohammad Seyedsayamdost, professor of chemistry.

From

One traditional method of determining antibiotic efficacy against it is by looking for signs of Burkholderia growth with the unaided eye or through a simple assay, and then treating it with a broad-spectrum antibiotic that kills everything in its path: antibiotic as blunt instrument.

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