The prefixes macro-, mega-, megal- share the meaning of which term?

• A. Large
• B. Small
• C. Wide
• D. Narrow

Answer: (A)

Macro-, mega-, and megal- all express largeness. In medical and scientific terms they’re size modifiers attached to a root to indicate something is big or enlarged. For example, macro- gives a sense of large size (macrocyte = a large cell), mega- means large or great (mega- as in megadolaret? In practice you’ll see megacity as a nonmedical example and megabyte in computing), and megal- is another form used before roots to signal enlargement (megaloblast = a large immature cell). Because all three convey the idea of something being big, the best answer is “Large.” This contrasts with prefixes like micro-, which mean small, helping you see the pattern of size indicators in medical terms.