pressure melting The melting of ice in response to stress. It comes about because the freezing temperature of water falls as pressure increases, at about 1 °C for every 140 bars (140 × 10⁵N/m²). The term ‘pressure melting point’ refers to the temperature at which ice just begins to melt under a given pressure.

pressure melting The melting of ice in response to stress. It occurs because the freezing temperature of water falls as pressure increases, at about 1°C for every 140 bars (140 × 10⁵ N/m²). The term ‘pressure melting point’ refers to the temperature at which ice just begins to melt under a given pressure.