rhodamine
noun
rho·da·mine
ˈrō-də-ˌmēn 
often capitalized
: any of a group of yellowish-red to blue fluorescent dyes
especially
: a brilliant bluish-red dye made by fusing an amino derivative of phenol with phthalic anhydride and used especially in coloring paper and as a biological stain
Examples of rhodamine in a Sentence
Recent Examples on the Web
Crews started dumping the rhodamine dye into the water Monday and will complete the study by Friday, according to a news release.
—
Tribune News Service, The Mercury News, 29 Aug. 2024
The dye is nontoxic rhodamine that is safe for use in drinking water and salt water.
—Kristina Davis, San Diego Union-Tribune, 3 Dec. 2021
In the photos on this page, researchers with David Kaplan’s Watershed Ecology Lab at the University of Florida used non-toxic rhodamine WT fluorescent dye as a tracer.
—Jennifer Adler, National Geographic, 29 Mar. 2017
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Tribune News Service, The Mercury News, 29 Aug. 2024
The dye is nontoxic rhodamine that is safe for use in drinking water and salt water.
—Kristina Davis, San Diego Union-Tribune, 3 Dec. 2021
In the photos on this page, researchers with David Kaplan’s Watershed Ecology Lab at the University of Florida used non-toxic rhodamine WT fluorescent dye as a tracer.
—Jennifer Adler, National Geographic, 29 Mar. 2017
Cite this Entry
“Rhodamine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rhodamine. Accessed 11 Jul. 2025.
Copy CitationMedical Definition
rhodamine
noun
rho·da·mine
ˈrōd-ə-ˌmēn
: any of a group of yellowish red to blue fluorescent dyes
especially
: rhodamine b
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