haptoglobin
noun
hap·to·glo·bin
ˈhap-tə-ˌglō-bən 
: any of several forms of an alpha globulin found in blood serum that can combine with free hemoglobin in the plasma and thereby prevent the loss of iron into the urine
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If more blood is being destroyed than usual, the level of haptoglobin drops.
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Lisa Sanders, M.d., New York Times, 18 Apr. 2018
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Lisa Sanders, M.d., New York Times, 18 Apr. 2018
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“Haptoglobin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/haptoglobin. Accessed 4 Nov. 2025.
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haptoglobin
noun
hap·to·glo·bin
ˈhap-tə-ˌglō-bən
: any of several forms of an alpha globulin found in blood serum that can combine with free hemoglobin in the plasma and thereby prevent the loss of iron into the urine
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