nounmasculinepl: isoladores
insulator
1. A device or material that prevents the passage of electric current, heat, or sound
The electrical isolator prevented the current from passing through the metal frame.
O isolador elétrico impediu que a corrente passasse pelo marco de metal.
2. A person or entity that isolates or separates something from others
The isolator maintained quarantine protocols in the hospital ward.
O isolador manteve protocolos de quarentena na enfermaria do hospital.
3. In electrical systems, a ceramic or porcelain component that supports and insulates power lines
The power line isolators were damaged during the storm.
Os isoladores da linha de energia foram danificados durante a tempestade.
The term 'isolador' is primarily used in technical and industrial contexts in Brazil and Portugal, particularly in electrical engineering, construction, and telecommunications. It's a formal, specialized vocabulary word rather than everyday colloquial speech. The ceramic insulators on power lines are iconic visual elements of Brazilian and Portuguese infrastructure.
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