thermosetting

[ thur-moh-set-ing ]
/ ˈθɜr moʊˌsɛt ɪŋ /

adjective

pertaining to a type of plastic, as the urea resins, that sets when heated and cannot be remolded.

Origin of thermosetting

First recorded in 1935–40; thermo- + setting

Words nearby thermosetting

thermoregulation, thermoremanent magnetization, thermos, thermoscope, thermosensitive, thermosetting, thermosiphon, thermosphere, thermostable, thermostat, thermostatics

British Dictionary definitions for thermosetting

thermosetting
/ (ˌθɜːməʊˈsɛtɪŋ) /

adjective

(of a material, esp a synthetic plastic or resin) hardening permanently after one application of heat and pressure. Thermosetting plastics, such as phenol-formaldehyde, cannot be remoulded Compare thermoplastic

Scientific definitions for thermosetting

thermosetting
[ thûr′mō-sĕt′ĭng ]

Relating to a compound that softens when initially heated, but hardens permanently once it has cooled. Thermosetting materials are made of long-chain polymers that cross-link with each other after they have been heated, rendering the substance permanently hard. Compare thermoplastic.