methylene blue
noun
: a basic thiazine dye C16H18ClN3S·3H2O used especially as a biological stain, an antidote in cyanide poisoning, and an oxidation-reduction indicator
Examples of methylene blue in a Sentence
Recent Examples on the Web
The prevailing theory pinpointed methylene blue, a synthetic dye, as the mystery liquid.
—
Cathy Nelson, Health, 19 Feb. 2025
The liquid he is purportedly seen adding to his drink is understood to be methylene blue.
—Kristan Hawkins, Newsweek, 6 Feb. 2025
To gauge the fat content of the cream brought by farmers, the dairy would insert methylene blue in a sample and waited for its lactic acid to dissolve the color.
—Joseph Berger, BostonGlobe.com, 10 Jan. 2023
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Cathy Nelson, Health, 19 Feb. 2025
The liquid he is purportedly seen adding to his drink is understood to be methylene blue.
—Kristan Hawkins, Newsweek, 6 Feb. 2025
To gauge the fat content of the cream brought by farmers, the dairy would insert methylene blue in a sample and waited for its lactic acid to dissolve the color.
—Joseph Berger, BostonGlobe.com, 10 Jan. 2023
Cite this Entry
“Methylene blue.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/methylene%20blue. Accessed 27 Feb. 2025.
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