The prefix hyper means:

• A. excessive or high
• B. low
• C. normal
• D. below

Answer: (A)

Hyper- is a prefix meaning over, above, or excessive, signaling that something is higher than the normal level. That’s why it appears in words like hyperactive (more activity than usual), hyperglycemia (high blood sugar), and hypertension (high blood pressure). So the idea of “excessive or high” is the best way to understand it. The notions of low, normal, or below would be expressed with other prefixes such as hypo- for under or low, or with terms that denote normal levels.