Rhod/o, Erythr/o, Eosin/o, Rose/o, Rubr/i/o all refer to which color?

Rhod/o, Erythr/o, Eosin/o, Rose/o, Rubr/i/o all refer to which color?

• A. Red
• B. Blue
• C. Green
• D. Yellow

Answer: (A)

These prefixes all indicate the color red. In medical terminology, rhod/o, erythr-/erythr/o, eosin/o, rose/o, and rubr-/rubri-/rubro all come from roots meaning red or rose. You’ll see them in terms like erythrocyte (red blood cell), rubr/o (red), rhod/o or rose/o (rose-colored), and eosin (a red-orange stain used in lab work). Because they unify around red, that’s why this set points to red rather than any other color. Other color roots would point to different hues, such as blue with cyan/o, green with chlor/o, or yellow with xantho- or flav/o.

These prefixes all indicate the color red. In medical terminology, rhod/o, erythr-/erythr/o, eosin/o, rose/o, and rubr-/rubri-/rubro all come from roots meaning red or rose. You’ll see them in terms like erythrocyte (red blood cell), rubr/o (red), rhod/o or rose/o (rose-colored), and eosin (a red-orange stain used in lab work). Because they unify around red, that’s why this set points to red rather than any other color. Other color roots would point to different hues, such as blue with cyan/o, green with chlor/o, or yellow with xantho- or flav/o.