A bigwig refers to a person who is an expert in a particular area of study or field. Thus, a bacterial wig will be someone who is an expert in the area of bacteriology. Such a person will probably have the highest degree that is obtainable in that field and will be an authority to reckon with when it comes to the issue of bacteria.
Answer: The best way to describe the theme of Pygmalion is Pygmalion explores how social identity is formed not only through patterns of speech, but also through one's general appearance. Much like speech, one's physical appearance signals social class.
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