hemoglobin S

noun

Definition of hemoglobin S

: an abnormal hemoglobin that occurs in the red blood cells in sickle cell anemia and sickle-cell trait

First Known Use of hemoglobin s

1954

in the meaning defined above

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Medical Dictionary

hemoglobin S

noun

medical Definition of hemoglobin S

: an abnormal hemoglobin occurring in the red blood cells in sickle cell anemia and sickle cell trait and differing from hemoglobin A in having a valine residue substituted for the glutamic-acid residue in position 6 of two of the four polypeptide chains making up the hemoglobin molecule