insulator

• Substantivo que designa um material, como vidro ou porcelana, com condutividade elétrica ou térmica muito baixa, usado para impedir a passagem de eletricidade ou calor.

A noun referring to a material, such as glass or porcelain, that has very low electrical or thermal conductivity and is used to prevent the flow of electricity or heat.

1. Electrical insulatorB2formaltechnical

   A material that resists the flow of electric current, used to separate conductors and prevent accidental contact.

   Isolante elétrico

   • Rubber is a common insulator used for electrical wiring.
   • The power lines are supported by glass insulators.
   • Ceramic insulators prevent electricity from leaking to the ground.

   Sinônimosdielectricnonconductor

   Antônimosconductor

2. Thermal insulatorB2formaltechnical

   A material that reduces the transfer of heat, used to maintain temperature differences.

   Isolante térmico

   • Fiberglass is an effective thermal insulator for homes.
   • The vacuum flask uses a double wall as a thermal insulator.
   • Wool is a natural thermal insulator that keeps you warm.

   Sinônimosinsulantinsulationlagging

   Antônimosconductor