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Acid-fast

 - 4 dictionary results

ac⋅id-fast

  [as-id-fast, -fahst]
Use Acid-fast in a Sentence
–adjective
resistant to decolorizing by acidified alcohol after staining.
Origin:
1900–05

Related forms:
acid-fastness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To Acid-fast
ac·id-fast   (ās'ĭd-fāst')
adj.  Not decolorized by acid after staining, as bacteria that retain dye after an acid rinse.
ac'id-fast'ness n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: acid–fast
Pronunciation: 'as-&d-"fast
Function: adjective
: not easily decolorized by acids (as when stained) —used especially ofbacteria and tissues
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

acid-fast adj.
Of or relating to bacteria that are not decolorized by an acidic alcohol solution after they have been stained.

ac'id-fast'ness n.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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