methylene blue
a dark-green, crystalline compound, C16H18ClN3S, that dissolves in water to form a deep-blue solution: used chiefly as a dye, as a bacteriological and biological stain, and as an antidote for cyanide poisoning.
Origin of methylene blue
1- Also called methylthionine chloride.
Words Nearby methylene blue
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use methylene blue in a sentence
The most promising of the methods which have been devised are cryoscopy, the methylene-blue test, and the phloridzin test.
A Manual of Clinical Diagnosis | James Campbell ToddCounterstain in methylene blue, aqueous solution thirty seconds.
The Elements of Bacteriological Technique | John William Henry EyreCounterstain with Kuehne's carbolic methylene-blue for one or two minutes.
The Elements of Bacteriological Technique | John William Henry EyreStain carbolic methylene-blue, carbolic fuchsin, and Gram's method.
The Elements of Bacteriological Technique | John William Henry EyreFrom the resulting growths make cover-slip preparations and stain carbolic methylene-blue, Neisser's method, Gram's method.
The Elements of Bacteriological Technique | John William Henry Eyre
British Dictionary definitions for methylene blue
a dark-green crystalline compound forming a blue aqueous solution, used as a mild antiseptic and biological stain. Formula: C 16 H 18 N 3 SCl.3H 2 O: Also called: methylthionine chloride
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
Scientific definitions for methylene blue
A basic dye that forms a deep blue solution when dissolved in water. It is used as an antidote for cyanide poisoning and as a bacteriological stain. Chemical formula: C16H18N3SCl.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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