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domain

1. n. [Geophysics]
The set of values an independent variable can take. For example, the independent variable of the time domain is time; and for the frequency domain, it is frequency.
2. n. [Reservoir Characterization]
A region of magnetic polarity within a ferromagnetic body. Domains collectively determine the magnetic properties of the body by their arrangement.
3. n. [Reservoir Characterization]
A region characterized by a specific feature.
4. n. [Reservoir Characterization]
The set of values assigned to the independent variables of a function.