Unrestricted and total; not limited. (1)

1. The ability to produce a unit of a product using fewer resources than any another producer.
2. A country has an absolute advantage if its output per unit of input of all goods and services produced is greater than that of another country.

If one person, firm, or country can produce more of something with the same amount of effort and resources, they have an absolute advantage over other producers.

The question of what to specialize in and how to maximize the benefits from international trade is determined according to comparative advantage that identifies which activities a country, firm, or individual is most efficient at doing. Both absolute and comparative advantages may change significantly over time.

Time before the present stated in years; referring to geologic events, generally based on measurement of radioactive decay rates and products of minerals or rock substances; such as, the uraniumlead method, carbon-14 method, etc.

A calendrical date that applies to a site, artifact, or feature.

1. The mass of water vapor in a given amount of the air.
2. The ratio of the mass of water vapor present in the air to the volume occupied by the gas.

The density of water vapor in the air is usually expressed as grams of water vapor per cubic meter of air.

1. The magnitude a celestial object would appear to have if it were at a distance of ten parsecs (10 times 3.261633 light years or 32.62 parsecs).
2. A measure of the true or intrinsic brightness of a star as if all stars were the same distance (32.6 light-years) from the observer.

Establishing a specific income level for a given-sized household below which the household is judged to be living in a state of poverty.

The absolute magnitude of an object measured through a special yellowish filter that approximates the visual range of the human eye.

The weight (or mass) of a body in a vacuum or the weight of a body considered apart from all modifying influences; such as, the atmosphere.

To determine its absolute weight, a body must be weighed in a vacuum or an allowance must be made for buoyancy (tendency or capacity to remain afloat in a liquid or to rise in air or gas).

The lowest temperature theoretically possible, corresponding to -459.67 degrees on the Fahrenheit scale and -273.15 degrees on the Celsius scale and it is 0 on the Kelvin temperature scale, which uses the same degrees as the Celsius scale.

Although absolute zero has not been reached, yet, the techniques of cryogenics, the technology for creating temperatures below -200 degrees Celsius, have come closer.