The process of a solid becoming liquid due to heat or other causes (commonly used in scientific or meteorological contexts; verb form: 融解する).
気温上昇により極地の氷の融解が進んでいる。
Rising temperatures are accelerating the melting of polar ice.
金属を加熱して融解点に達させる実験を行った。
We conducted an experiment heating the metal until it reached its melting point.