(Greek: large, great; long [in extent or duration]; enlarged, or elongated, long [in length]; abnormally large)
2. A branch of economics dealing with the broad and general aspects of an economy; such as, the relationship between the income and investments of a country as a whole.
This is the field of economics that studies the behavior of the aggregate economy including economy-wide phenomena; such as, changes in unemployment, national income, rate of growth, gross domestic product, inflation, and price levels.
Macroeconomics is focused on the movement and trends in the economy as a whole, while in microeconomics the focus is placed on factors that affect the decisions made by firms and individuals.
The factors that are studied by macro and micro will often influence each other; for example, the current level of unemployment in the economy as a whole will affect the supply of workers which an oil company can hire from.
2. Evolution on a species level (speciation and extinction) and at higher taxonomic classifications (appearance and disappearance of genuses, families, orders, etc.).
2. Animals of a habitat that contains a variety of environments and ecological niches capable of supporting a wide range of animals.
3. In zoology, animals visible to the naked eye.
2. Widely distributed flora.
3. The flora of a macrohabitat.