the science that studies living organisms

a specialist in microbiology

having complicated nutritional requirements; especially growing only in special artificial cultures

not exacting in nutritional requirements

(microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants

(microbiology) a group of organisms grown from a single parent cell

(microbiology) an infectious protein particle similar to a virus but lacking nucleic acid; thought to be the agent responsible for scrapie and other degenerative diseases of the nervous system