insulator
/ˈɪnsjuleɪtə(r)/ (bre, ipa) · /ˈɪnsəleɪtər/ (ame, ipa) · /ˈin(t)-sə-ˌlā-tər/ (ame, mw)
insulator — noun
- insulatorsingular
- insulatorsplural
1. a substance or object that stops or slows the movement of heat, electricity, or
a substance or object that stops or slows the movement of heat, electricity, or sound from one place to another
Rubber is a good electrical insulator, so electricians wrap it around wires for safety.
collocation: good electrical insulator
Pablo installed foam insulator in his attic to keep the house warm in winter.
Fiberglass, a common building insulator, helps reduce noise traveling between rooms.
The plumber wrapped pipe insulator around the hot water pipes to stop heat loss.
Without a suitable insulator, the metal pan handle would get too hot to touch.
- non-conductor
more technical term, almost always for electricity rather than heat or sound
- insulation
uncountable mass noun referring to the material itself rather than an individual piece/substance
- conductor
a substance that allows heat, electricity, or sound to pass through easily
文法句型
[adjective] insulator
insulator + against + [noun]
用法筆記
Can be modified by a preceding noun specifying the type — electrical insulator, thermal insulator, sound insulator. The object or energy being blocked is introduced by against (insulator against heat).