(noun) a point or place at which something is invented or provided
(noun) the source from which something grows or develops
(noun) an immaterial thing upon which something else rests
Definitions for Bacterium
(noun) (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