Ace the Foundations of Health Science 2026 – Dive In and Discover Your Path to Success!

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What is the root word for red?

Cardio

Erythro

Red in medical terminology is expressed by the combining form erythro-, which comes from the Greek word erythros meaning red. This root appears in terms like erythrocyte (a red blood cell) and erythroderma (red skin), making it the clear indicator of the color red. The other options point to different concepts: cardio- relates to the heart, rhin- to the nose, and neo- means new. So erythro- is the form that specifically conveys red.

Rhin

Neo

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