英语词汇“rose bengal”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

rose bengal

/ˌrəʊz bɛnˈɡɔːl/ /ˌrəʊz bɛŋˈɡɔːl/

(also rose bengale) Chemistry

noun

A bluish-red dye related to fluorescein, used especially as a biological stain.

Rose bengal is 4,5,6,7-tetrachloro-2′,4′,5′,7′-tetraiodofluorescein (or the sodium or potassium salt of this), C₂₀H₄O₅Cl₄I₄..

Origin

Late 19th century; earliest use found in Chemical News. From French rose bengale from rose + the name of Bengale; in some forms showing assimilation of the second element to the English form of the place name.

单词	rose bengal
释义	rose bengal /ˌrəʊz bɛnˈɡɔːl/ /ˌrəʊz bɛŋˈɡɔːl/ (also rose bengale) Chemistry noun A bluish-red dye related to fluorescein, used especially as a biological stain. Rose bengal is 4,5,6,7-tetrachloro-2′,4′,5′,7′-tetraiodofluorescein (or the sodium or potassium salt of this), C₂₀H₄O₅Cl₄I₄.. Origin Late 19th century; earliest use found in Chemical News. From French rose bengale from rose + the name of Bengale; in some forms showing assimilation of the second element to the English form of the place name.
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