rhodamine

noun

rho·​da·​mine ˈrō-də-ˌmēn How to pronounce rhodamine (audio)
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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
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

Word History

Etymology

borrowed from German Rhodamin, from rhod- rhod- + Amin amine

First Known Use

1888, in the meaning defined above

Time Traveler
The first known use of rhodamine was in 1888

Dictionary Entries Near rhodamine

Cite this Entry

“Rhodamine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rhodamine. Accessed 21 Nov. 2024.

Medical Definition

rhodamine

noun
rho·​da·​mine ˈrōd-ə-ˌmēn How to pronounce rhodamine (audio)
: any of a group of yellowish red to blue fluorescent dyes
especially : rhodamine b
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