What does the suffix "-oid" signify?

The suffix "-oid" signifies "similar to" or "resembling." It is commonly used in medical terminology to describe structures, conditions, or entities that resemble something else. For example, in the term "humanoid," the suffix indicates that something is similar in characteristics to a human. This helps in understanding and categorizing various medical terms, enhancing clarity when describing conditions or anatomical structures. The other options represent different meanings that are not aligned with the definition of "-oid." "Condition of," "part of," and "process of" correspond to other suffixes like "-osis," "-um," and "-ation," respectively, which indicate different aspects of medical terminology.