e·co·sys·tem 
(ēkō-sĭs′təm, ĕkō-)
(ēkō-sĭs′təm, ĕkō-)n.
An ecological community together with its environment, functioning as a unit.
- microarray
- microbalance
- microbar
- microbarograph
- microbe
- microbial
- microbic
- microbiologic
- microbiological
- microbiologically
- microbiologist
- microbiology
- microbiome
- microbiota
- microbrew
- microbrewer
- microbrewery
- microbubble
- microburst
- microbus
- microcalcification
- microcap
- microcapsule
- microcephalic
- microcephalous