A scientific instrument used to analyze the composition and properties of blood by examining light wavelengths passing through it.
From Greek haima (blood) + spectrum (appearance or image) + -scope (instrument for viewing). This compound term was created when scientists needed to study blood's properties using spectroscopy.
Spectroscopy—splitting light into its component colors—revealed secrets about blood that were invisible to doctors for centuries, like detecting poisons or identifying anemias, making it a game-changing technology.
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