Definition of acridine orange in English:

acridine orange

noun

Chemistry
  • A fluorescent dye derived from acridine which binds to nucleic acids, now chiefly used in diagnostic and experimental microbiology.

    Systematic name: N,N,N′,N′-tetramethylacridine-3,6-diamine; C₁₇H₁₉N₃.

Origin

Late 19th century; earliest use found in Journal of the Society of Chemical Industry.