Fr.: 1) droite de Rayleigh; 2) raie de Rayleigh
1) A straight line that connects the points corresponding to the initial and final states
on a graph of pressure versus specific volume for a substance subjected to a
→ shock wave. The slope of the Rayleigh line is proportional
to the square of shock speed. Steeper Rayleigh lines correspond to higher
shock speeds. See also → Hugoniot curve.