(transitive, idiomatic) To disappear gradually into.

(chemistry, physics) The temperature at which the solid and liquid phases of a substance are in equilibrium; it is relatively insensitive to changes in pressure

(physics, chemistry) A technique used to purify a metal, semiconductor or other solid in which a heating system slowly causes a series of molten zones to traverse the solid, leaving purer material behind it.

plural of melting point

A crucible, or similar pot, used to fuse mixtures of metals etc. / (idiomatic) A place where many divergent things (often races or cultures, but also talents) come together and are homogenized.

A type of closed sandwich with a non-cheese filling, and a layer of cheese on top which is grilled or fried until the cheese melts.

plural of melting pot

(education) The phenomenon where incoming students who have committed to attend a college or university change their minds during the summer and opt to attend another institution.

A sandwich with tuna and a layer of melted cheese in it, usually eaten hot.

(intransitive) To fade or wane