glute - any one of three large skeletal muscles that form the buttock and move the thigh. gluteal muscle, gluteus, gluteus muscle. skeletal muscle, striated muscle - a muscle that is connected at either or both ends to a bone and so move parts of the skeleton; a muscle that is characterized by transverse stripes.
Microbiology is the science which is concerned with the study of micro-organisms including their distribution and role in the environment and their relationship to other living organisms including humans (in health and disease) and other animals.
Note that in the life sciences at U.S. institutions, you do NOT need to complete a Master's degree before pursuing a Doctoral degree. The most common Doctoral degrees pursued by microbiologists are Doctor of Medicine (MD), Doctor of Philosophy (PhD), and combined MD-PhD degrees.