isopiestic lines

1 definition found

isopiestic lines - Collaborative International Dictionary of English v.0.48 :

  Isopiestic \I`so*pi*es"tic\, a. [Iso- + Gr. ? to press.]
     (Thermodynamics)
     Having equal pressure.
     [1913 Webster]
  
     Isopiestic lines, lines showing, in a diagram, the
        relations of temperature and volume, when the elastic
        force is constant; -- called also isobars.
        [1913 Webster]