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EB1911 - Volume 01 - Page 001 - 1.svg This entry lacks etymological information. If you are familiar with the origin of this term, please add it to the page per etymology instructions. You can also discuss it at the Etymology scriptorium.
Particularly: “gen”

haemo- +‎ chromo plus gen, from Ancient Greek: αἷμα ‎(haîma, blood) combined with χρῶμα ‎(khrôma, colour)…


hæmochromogen ‎(uncountable)

  1. (biochemistry) Substance of hemoglobin, from lack of oxygen.
    • 1900, Henry Pickering Bowditch, An American text-book of physiology, page 37:
      Hæmochromogen in the presence of oxygen quickly undergoes oxidation to the more stable hæmatin.