Sickle-cell
noun, Pathology.
1.
an abnormal red blood cell having an elongated, crescentlike shape due to the presence of an abnormal hemoglobin.
sickle cell sick·le cell (sĭk’əl)
n.
An abnormal, crescent-shaped red blood cell that results from a single change in the amino acid sequence of the cell’s hemoglobin, which causes the cell to contort, especially under low-oxygen conditions. Also called drepanocyte, meniscocyte.
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