Definitions:

1. A thermosetting resin, commonly used in elecetrical insulators, kitchenware, and automotive parts. NOUN
   • Phenoplasts are among the earliest synthetic plastics developed in the early 20th century.
2. A type of thermosetting plastic made from phenol-formaldehyde resins, that becomes hard and heat-resistant when cured and is not re-meltable after setting. NOUN
   • The handles of vintage cookware were often made from phenoblast due to its heat resistance.

Synonyms:

• bakelite
• phenolic resin
• thermoset plastic