Maximum

Part of speech: noun (n.)

The greatest quantity or value attainable in a given case; or, the greatest value attained by a quantity which first increases and then begins to decrease; the highest point or degree; -- opposed to Ant: minimum. Good legislation is the art of conducting a nation to the maximum of happiness, and the minimum of misery. P. Colquhoun. Maximum thermometer, a thermometer that registers the highest degree of temperature attained in a given time, or since its last adjustment.

Part of speech: adjective (a.)

Greatest in quantity or highest in degree attainable or attained; as, a maximum consumption of fuel; maximum pressure; maximum heat.