Macro- or Micro-?

The prefix macr- or macro- means "large" or "long."

The prefix micr- or micro- means "small" or "tiny."

Examples: macroeconomics--the study of economic systems.

microeconomics--the study of a specific transaction or market.

The prefix micr- or micro- in the metric system means "millionth," so a microliter is a millionth of a liter. For more on this see Abbreviations of Measurements.

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