1. occurring or existing at a constant temperature
Usage: commonly used in physics and thermodynamics
2. of or relating to a line on a map connecting points of equal temperature
Usage: used in meteorology and geography

Examples

• The isothermal process in the engine maintained a steady temperature throughout the cycle.
• Scientists studied the isothermal compression of the gas in the laboratory.
• The weather map displayed isothermal lines showing temperature patterns across the region.
• An isothermal expansion allows heat to flow into the system to keep temperature constant.
• The isothermal layer of the ocean remains at a uniform temperature year-round.
• Engineers designed an isothermal chamber for precise temperature-dependent experiments.