What is the meaning of the prefix "nulli-"?

The prefix "nulli-" originates from Latin, meaning "none" or "not any." This prefix is commonly used in medical terminology to indicate the absence of something. For example, in terms such as "nulliparous," which refers to a woman who has never given birth, the prefix clearly conveys the idea of absence or lack.

In contrast, the other choices convey different meanings. "All" implies a totality, representing the complete set or entirety, which is opposite to the concept of absence. "Many" suggests a significant quantity or multiple instances, again not aligning with the absence denoted by "nulli-." "Beside" relates to position or proximity, which is unrelated to the absence implied by the prefix.

Thus, the meaning of "nulli-" as "none" is accurate and aligns with its usage in medical contexts, reinforcing the idea of lack or absence.