American Heritage® Dictionary of the English Language, Fourth Edition
- n. A material that insulates, especially a nonconductor of sound, heat, or electricity.
- n. A device that insulates.
Century Dictionary and Cyclopedia
- n. One who or that which insulates; specifically, a substance or body that interrupts the communication of electricity or heat to surrounding objects; a non-conductor; anything through which an electric current will not pass. The figures show the usual forms of insulators employed in telegraph-lines to support the wire on the post. They are frequently made of porcelain or glass, and in the shape of an inverted cup, round which the wire is wrapped or is attached by a hook depending from it, or the like. In the case of electricity the commonest insulators for supports are glass, porcelain, and vulcanized rubber; and for covering wires conveying currents, silk, cotton, gutta-percha, and rubber. These substances do not absolutely prevent the communication of electricity, but a good glass Leyden jar, for example, will hold a charge for months. No perfect insulator for either electricity or heat is known, and the distinction between conductors and insulators is some what arbitrary.
- n. A substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator).
- n. A non-conductive structure, coating or device that does not transmit sound, heat or electricity (see image)
GNU Webster's 1913
- n. One who, or that which, insulates.
- n. (Elec. & Thermotics) A substance or object that insulates; a nonconductor.
- n. a material such as glass or porcelain with negligible electrical or thermal conductivity
- From insulate 'to isolate' (itself from Latin insula 'island') + suffix -or (Wiktionary)
“A measure of whether a semiconductor most resembles a conductor or an insulator is given in the band gap - the amount of energy needed to produce moving charge-bearers in the form of electrons and "holes".”
“This forms an insulator which is not affected by heat or moisture.”
“Although I am sure it would be hard for her to get brain freeze as air is an awesome insulator!”
“And the crowning glory, the "green" sedum roof – actually more of a russet colour – on the Newton building, which acts as a natural insulator, helps prevents flash flooding and provides a haven for birds, bees and butterflies.”
“Durring ice fishing I put a small minnow or smelt about 6-10 inches below the ice and cover the hole with a insulator on the tip up.”
“Glass is a very poor insulator (R-0. 24 per inch), which is why houses with single-pane windows lose so much heat.”
“(In reality, the sheet might do better than the extra glass because it traps air underneath — also a better insulator than glass!)”
“The material is also an excellent insulator, and is flexible, making it appropriate in areas at risk of earthquakes.”
“Besides serving as a coolant and insulator, mineral oil, a byproduct of petroleum distillation, has many other uses, including as a laxative.”
“I had always heard that snow was a good insulator and thus protected the animals and the plants on or in the soil against very low temperatures.”
These user-created lists contain the word ‘insulator’.
All the scientific words found in the official EU nomenclature. For the screening I used Vocabgrabber of the Visual Thesaurus.
includes words of the "Prodcom list"
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