Isothermal line

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An isotherm
A line drawn on a diagram of energy such that its ordinates represent the pressures of a substance corresponding to various volumes, while the absolute temperature is maintained at a constant value.

See also: Isothermal, Isothermal

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Connection of points with the same temperature creates an isothermal line (in one-dimensional fields) or isothermal area (in multidimensional fields).
2) Determine the time at the intercept between the isothermal line and each [alpha] curve;
Temperature distribution and isothermal line form change and depend on the EB radius.