Definition of hot melt in English:

hot melt

noun

Manufacturing Technology
  • A hot and molten form of a substance which is usually solid at room temperature; (in later use also) an adhesive, coating, etc., which is applied in a heated molten state and which sets as it cools.

adjective

Manufacturing Technology
  • Solid at normal temperatures but capable of being melted for application, e.g. as a coating.

Origin

Early 20th century; earliest use found in U.S. Patents.