In order to answer this question, we need to understand the meaning of “bigwig”. A bigwig refers to an important person, an expert, who has vast knowledge in an area of activity, interest, or expertise. Once we have the definition of “bigwig”, we can infer that a bacterial bigwig is, therefore, a person who is an expert in the area of bacteriology, a science that deals with bacteria and their relations to medicine, industry, and agriculture.
