Liquefaction (noun)

The process or effect of turning or being turned into a liquid, especially by heating or by the application of pressure.

Origin:

Late 16th century: from latin liquefactio(n-), from liquefacere 'to make liquid', from liquor 'liquid'. the current sense dates from the mid 17th century.

Examples:

1. The liquefaction of the solid propellant was a critical step in the rocket's engine system.
2. The liquefaction of the gas allowed it to be transported in tankers, rather than by pipelines.
3. The scientists were fascinated by the liquefaction of materials that were previously thought to be solid and unchangeable.
4. The liquefaction of the metal was caused by intense heat, leading to a dramatic and dangerous expansion.
5. The liquefaction of the soil made it unstable, causing the buildings to sink and the roads to crack.