An antibody or substance that works against hemoglobin, the protein in red blood cells that carries oxygen.
From anti- (against) + hemoglobin (hemo- blood + globin from Latin 'globulus' small ball). A term from immunology and hematology.
Doctors test for antihemoglobin antibodies to diagnose autoimmune conditions where your body mistakenly attacks its own hemoglobin—it's when your immune system gets confused about who the enemy is.
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