Meaning of THERMOSETTING in English

THERMOSETTING

-ed.iŋ adjective

Etymology: therm- + setting, present participle of set (become solid)

: having the property of becoming permanently hard and rigid when heated or cured : capable of changing from a plastic or fusible state to an infusible or insoluble state by a chemical reaction effected by heat or other means and leading to a complex high polymer

the phenol resins and plastics were the original synthetic thermosetting materials

— compare thermoplastic

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.