Final answer:
Poikilocytosis refers to the presence of red blood cells with varying irregular shapes, which could indicate certain health conditions.
Step-by-step explanation:
Poikilocytosis refers to a condition where there is an abnormal variation in the shape of red blood cells (RBCs) or erythrocytes in the blood. Eukaryotic cells can present in various shapes, including spheroid, ovoid, cuboidal, and more, depending on their function and other factors like cytoskeleton organization and physical pressure. However, poikilocytosis specifically relates to the presence of red blood cells of irregular shapes, which can be an indication of certain diseases or conditions affecting the health of the individual.