Liquefy (verb)

1. To make or become liquid.
2. To reduce to a liquid or semiliquid state.

Origin:

From latin liquefacere, from lique- liquid + facere to make.

Examples:

1. The heat of the sun liquefied the ice cream.
2. The scientists were able to liquefy the gas by cooling it to a very low temperature.
3. The process of liquefying natural gas involves cooling it to a temperature of -162 degrees Celsius.
4. The pressure was increased to liquefy the gas.
5. The researchers used a centrifuge to liquefy the blood plasma.