微生物学家
Microbiology \Mi`cro*bi*ol"o*gy\, n. [See {Microbe}; {-logy}.]
The study of minute organisms, or microbes, as the bacteria.
-- {Mi`cro*bi`o*log"ic*al}, a. -- {Mi`cro*bi*ol"o*gist}, n.
microbiologist
n : a specialist in microbiology