Definitions for "Isotherm"
A line connecting or marking points on the earth's surface having the same temperature. This may be the temperature for a given time of observation, or the mean temperature for a year or other period. Also, a similar line based on the distribution of temperature in the ocean.
A line on a graph connecting points representing states having the same temperature; an isothermal line.
Line on map linking places of equal temperature.
A graphical representation of a mathmatical equation, such as the relationship of the concentration of a contaminant veruss the mass that is adsorbed by soil particles. The Freundlich Isotherm represents a common equilibrium equation.