'Isopiestic lines' definitions:
Definition of 'Isopiestic lines'
From: GCIDE
- 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]