Microorganisms and their activities are vitally important to all processes on Earth. Microorganisms matter because they affect every aspect of our lives - they are in us, on us and around us; they play an essential role in the cycles of matter in nature, affect all biological environments, interact in countless ways with other living beings, and play a crucial role in agriculture and industry. This Dictionary of Microbiology Terms provides a basic vocabulary of terms used in Microbiology. The text is appropriate for students in a wide variety of programs, including the allied health sciences, biological science, environmental science, animal science, forestry and agriculture. The Dictionary is valuable as supplementary material for all students of Biology, Microbiology, Microbial Biology, Nutritionism, Ecology and related subjects which are deal with microorganisms.