Definición de Congo red en inglés:

Congo red

Saltos de línea: Congo red

sustantivo

[mass noun]
  • A red-brown azo dye which becomes blue in acidic conditions, used as a chemical indicator and as a stain in histology.
    Más ejemplos en oraciones
    • The chemicals used in making Congo red and the other aniline dyes were primarily derived from the coal-tar waste products of the coal gas and steel industries in Germany's Ruhr Valley.
    • The presence of amyloid confirmed histologically by either Congo red or sulfonated Alcian blue stains or by electron microscopy was seen in 8 muscles.
    • Potassium permanganate incubation caused loss of reactivity with Congo red.

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Palabra del día astrogation
Pronunciación: ˌastrə(ʊ)ˈgeɪʃ(ə)n
noun
(in science fiction) navigation in outer space