baseline

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Related to orbitomeatal line: orbitomeatal plane, intraorbital

Baseline

Anything used for comparison. For example, a company that wishes to determine whether its profits are increasing or decreasing may compare them to a previous year's profits. In this case, the previous year's profits are considered the base line. A baseline is also called a base. See also: Benchmark, Base currency.

baseline

East-west lines in the public land survey system, part of the baseline and meridian line components. Each principal meridian has a baseline. Properties in the principal meridian's area are described by their bearing east or west of the meridian and north or south of the baseline.