- the environment of a small area or of a particular organism; microhabitat.
- ecology the environment of a small area, such as that around a leaf or plant
- The environment of a very small, specific area, distinguished from its immediate surroundings by such factors as the amount of incident light, the degree of moisture, and the range of temperatures. The side of a tree that is shaded from sunlight is a microenvironment that typically supports a somewhat different community of organisms than is found on the side that receives regular light. Also called microhabitat