In the word "encephalitis," what does "encephalo-" mean?

• A. brain
• B. head
• C. spine
• D. tooth

Answer: (A)

The prefix "encephalo-" in the word "encephalitis" refers specifically to the brain. This term originates from the Greek word "encephalon," which means brain. In medical terminology, recognizing prefixes can provide essential insights into the conditions being described.

In this case, "encephalitis" itself means inflammation of the brain, which is consistent with the presence of "encephalo-" indicating that the condition relates to the brain. Understanding the significance of medical prefixes can greatly aid in interpreting various medical terms and conditions accurately. The other options do not relate specifically to the brain, which is why they do not apply in this context.