What does the root word 'erythr(o)' signify?

The root word 'erythr(o)' signifies the color red. This term is commonly used in medical terminology to describe red blood cells and conditions related to red pigmentation. For instance, 'erythrocyte' refers to a red blood cell, while 'erythroderma' denotes redness of the skin. Understanding this root helps in recognizing terms related to blood and its characteristics.

The other options represent different colors but are not related to the root 'erythr(o)'. For example, 'chol(e)' is associated with bile and often represents yellow, while 'chlor(o)' indicates green. Therefore, the connection of 'erythr(o)' specifically with the color red is key to interpreting various medical terms correctly.