Aggregate of microorganisms in which cells that are frequently embedded within a self-produced matrix of extracellular polymeric substances adhere to each other and/or to a surface.
* A biofilm is a system that can be adapted internally to environmental conditions by its inhabitants.
* The self-produced matrix of extracellular polymeric substances, which is also referred to as slime, is a polymeric conglomeration generally composed of extracellular biopolymers in various structural forms. (en)
