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ABSORPTION COOLING
A process in which cooling of an interior space is accomplished by the evaporation of a volatile fluid, which is then absorbed in a strong solution, then desorbed under pressure by a heat source, and then recondensed at a temperature high enough that the heat of condensation can be rejected to a exterior space.

ABSORPTION FIELD
A field engineered to receive septic tank effluent. Also called a leeching or seeping field, an absorption field consists of a series of shallow trenches - parallel, round, or whatever the land allows - 18" to 24" wide, in which drain tiles (pieces of perforated pipe) are placed. If the permeability of the soil, established by a percolation test is exceptional, then the pipes can be laid directly on it. In most cases the trenches must be lined with a 6" layer of gravel to help the effluent absorb properly into the soil.

ABSORPTION REFRIGERATION
A system in which a secondary fluid absorbs the refrigerant, releasing heat, then releases the refrigerant and reabsorbs the heat. Ammonia or water is used as the vapor in commercial absorption cycle systems, and water or lithium bromide is the absorber.

ABSORPTION REFRIGERATOR
Refrigerator which creates low temperature by using the cooling effect formed when a refrigerant is absorbed by chemical substance.

ABSORPTIVITY
In a solar thermal system, the ratio of solar energy striking the absorber that is absorbed by the absorber to that of solar energy striking a black body (perfect absorber) at the same temperature. The absorptivity of a material is numerically equal to its emissivity.

ABSTRACT OF JUDGMENT
A court judgment filed with the county that creates a lien against a piece of property.

ABSTRACT OF TITLE
A summary of all deeds, wills, and legal actions to show ownership.

ABSTRACT OR TITLE SEARCH
A review of public records to determine whether liens or defects of title exist on a piece of property, which could interfere with clear ownership transfer. Done prior to closing of title on a sale.

ABUT
Boundaries of contiguous properties with no intervening land. To join or rest against another. To butt

ABUTMENT
Supporting structure (column) at the end of a bridge or arch.

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