Insulator Meaning

/ˈɪn.s(j)ə.leɪ.tə(ɹ)/
B2

Definition, CEFR level B2, pronunciation, examples, and quiz.

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nounA substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator).

nounA non-conductive structure, coating or device that does not transmit sound, heat or electricity (see image)

Space is actually a good insulator because it is difficult to transfer heat to nothing.
It's a great insulator, keeping hot foods hot and cold foods cold.
Synonyms:
None
Antonyms:
CEFR Practice Quiz
Glass acts as an ____ to prevent electrical shocks.
CEFR Practice Quiz (Alternate)
Rubber is a good ____, which is why it is used to wrap electrical wires and prevent any shocks.

From insulate + -or.

"Alan Vasen worked as an insulator at this site from September 1968 through mid-April 1969. Mr. Vasen installed thousands of lineal feet of asbestos pipe covering and thousands of square feet of asbestos block insulation throughout the operating units of the Benicia refinery." — 2007, Kenneth S. Cohen, Expert Witnessing and Scientific Testimony: Surviving in the Courtroom:

Explore More B2 Vocabulary Words

CEFR Practice Quiz
Glass acts as an ____ to prevent electrical shocks.
CEFR Practice Quiz (Alternate)
Rubber is a good ____, which is why it is used to wrap electrical wires and prevent any shocks.

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