Bachelor of Health Science Practice Exam 2025 – Complete Prep Guide

The prefix "poly-" means many or multiple, while "multi-" also refers to many or multiple. Both prefixes are used in medical terminology to indicate a quantity greater than one, emphasizing the presence of numerous elements or instances. For example, "polyuria" refers to excessive urination, and "multivitamin" denotes a formulation containing multiple vitamins. This similarity in meaning makes "poly-" and "multi-" the correct choice for prefixes with comparable definitions in medical language.

In contrast, the other options reflect distinctions in meaning. "Bi-" and "tri-" indicate two and three, respectively, rather than multiple. "Hemi-" refers to half, while "mono-" means one, suggesting a singularity rather than plurality. "Sub-" indicates beneath or below, and "infra-" means below or underneath but is often used in a more specific anatomical context, further distinguishing them from one another.