methylene blue
noun Chemistry, Pharmacology.
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.
Also called
methylthionine chloride.
Origin of methylene blue
First recorded in 1885–90
Words nearby methylene blue
Example sentences from the Web for methylene blue
Ingestion of small amounts of methylene-blue gives a pale green; large amounts give a marked blue.
A Manual of Clinical Diagnosis |James Campbell ToddThe 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 ToddEffect of freezing procedures on methylene-blue reduction time.
Preservation of Bull Semen at Sub-Zero Temperatures |N. L. VanDemarkThey can readily be demonstrated in smears stained with Lffler's methylene-blue.
A Manual of Clinical Diagnosis |James Campbell Todd
British Dictionary definitions for methylene blue
methylene blue
noun
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
Medical definitions for methylene blue
methylene blue
n.
A basic aniline dye that forms a deep blue solution when dissolved in water and is used as a bacteriological stain and as an antidote for cyanide poisoning.
Scientific definitions for methylene blue
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.