insulator
noun
in·su·la·tor
ˈin(t)-sə-ˌlā-tər 
: one that insulates: such as
a
: a material that is a poor conductor (as of electricity or heat) compare semiconductor
b
: a device made of an electrical insulating material and used for separating or supporting conductors
Examples of insulator in a Sentence
Metal is not a good insulator.
Recent Examples on the Web
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Nora Colomer, Fox News, 5 Dec. 2024
If all the lanes in each band are completely full or completely empty, the system is either an insulator or a semiconductor.
—Douglas Natelson, Scientific American, 19 Mar. 2024
Electrons organize into all sorts of materials, from insulators to magnetic metals to electronic crystals, and slight disturbances seem poised to tip many of these materials into superconducting electron pairs.
—Charlie Wood, Quanta Magazine, 6 Dec. 2024
Basically, insulators allow little to no movement, semiconductors allow some, conductors allow a lot, and superconductors allow total freedom of movement with no resistance.
—Michael Irving, New Atlas, 11 Sep. 2024
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Nora Colomer, Fox News, 5 Dec. 2024
If all the lanes in each band are completely full or completely empty, the system is either an insulator or a semiconductor.
—Douglas Natelson, Scientific American, 19 Mar. 2024
Electrons organize into all sorts of materials, from insulators to magnetic metals to electronic crystals, and slight disturbances seem poised to tip many of these materials into superconducting electron pairs.
—Charlie Wood, Quanta Magazine, 6 Dec. 2024
Basically, insulators allow little to no movement, semiconductors allow some, conductors allow a lot, and superconductors allow total freedom of movement with no resistance.
—Michael Irving, New Atlas, 11 Sep. 2024
See all Example Sentences for insulator
Dictionary Entries Near insulator
Cite this Entry
“Insulator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insulator. Accessed 5 Jan. 2025.
Copy CitationKids Definition
insulator
noun
in·su·la·tor
ˈin(t)-sə-ˌlāt-ər
: one that insulates
especially
: a material that is a poor conductor of heat or electricity or a device made of such material
Medical Definition
insulator
noun
in·su·la·tor
ˈin(t)-sə-ˌlāt-ər
: a material that is used to provide insulation
also
: a device made of such material
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