melanoscope definition

  • noun:
    • a musical instrument containing a mixture of coloured eyeglasses in a way that they transmit just red light, so things of other colors, as green leaves, appear black colored whenever seen through it. Its employed for viewing colored flames, to detect the existence of potassium, lithium, etc., by the red light that they emit.
    • An instrument devised by Lommel to differentiate involving the flames of substances which in the spectroscope display red bands.
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