What is the meaning of the suffix "-genic"?

The suffix "-genic" comes from the Greek word "genes," which means "producing" or "originating." In medical terminology, it typically refers to something that is formed or produced by a particular agent or factor. For example, in terms like "carcinogenic," it indicates something that produces or causes cancer. Thus, the option indicating forming or producing accurately captures the primary meaning of this suffix.

The other choices don't align with the definition of "-genic." While "pertaining to" suggests a relationship, it doesn't denote the active process of producing. "Deficiency of" would indicate a lack or reduction, which doesn't correlate with creation. "Excessive flow" relates to an overflow or abundance, which again is unrelated to the concept of generating or producing something.