Common Terms. Ecosystem An ecosystem is any geographic area that includes all of the organisms and nonliving parts of their physical environment. An ecosystem can be a natural wilderness area, a suburban lake or forest, or a heavily used area such as a city.
Definition of documentation for English Language Learners. : 1  the documents, records, etc., that are used to prove something or make something official. : 2  written instructions for using a computer or computer program.
The definition of biographical is information about a person's life, or details about the life of a person. An example of biographical information is details about who you are, where you came from and what you have done. biographical. biographical.