Definition of Insulator

1. Noun. A material such as glass or porcelain with negligible electrical or thermal conductivity.

Exact synonyms: Dielectric, Nonconductor
Specialized synonyms: Bushing, Mineral Wool, Rock Wool, Glass Wool
Generic synonyms: Material, Stuff
Antonyms: Conductor
Derivative terms: Insulate

Definition of Insulator

1. n. One who, or that which, insulates.

Definition of Insulator

1. Noun. A substance that does not transmit heat (''thermal insulator''), sound (''acoustic insulator'') or electricity (''electrical insulator''). ¹

2. Noun. insulator A non-conductive structure, coating or device that does not transmit sound, heat or electricity (see image) ¹

¹ Source:

Definition of Insulator

1. [n -S]

Medical Definition of Insulator

1. 1. One who, or that which, insulates. 2. The substance or body that insulates; a nonconductor. Source: Websters Dictionary (01 Mar 1998)

Insulator Pictures

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Lexicographical Neighbors of Insulator

insulating material
insulating tape
insulating tapes
insulator (current term)
insulin-antagonizing factor
insulin-dependent diabetes mellitus
insulin-like-growth-factor-binding protein 6
insulin-like activity
insulin-like growth-factor-binding-protein 5
insulin-like growth-factor-binding proteins
insulin-like growth-factor binding protein 1
insulin-like growth factor-binding protein 2
insulin-like growth factor I
insulin-like growth factor II
insulin-like growth factor binding protein 3
insulin-like growth factors

Literary usage of Insulator

Below you will find example usage of this term as found in modern and/or classical literature:

1. Transactions of the American Institute of Electrical Engineers by American Institute of Electrical Engineers (1917)
"By AIEE THE insulator SITUATION BY WD PEASLEE ABSTRACT OF PAPER This paper gives a re'sume of the insulator situation as it exists at the present time and ..."

2. The Electrical Review (1878)
"JL-lV 15, 1878;] the arm whenever a new insulator is required. The rusting of the screw nut and screw sometimes renders the unscrewing of the nut very ..."

3. A Dictionary of Electrical Words, Terms and Phrases by Edwin James Houston (1903)
"insulator, Double-Cup An insulator consisting of two funnel-shaped cups, ... The line wire is wrapped in a groove on the outside of the insulator. ..."

4. Transactions by European Orthodontic Society, Lina Oswald, Northern Ohio Dental Society, Ossory Archaeological Society, Wentworth Historical Society, Society of Automobile Engineers (1910)
"A continuous metal ring enables the arc to shift readily around the insulator and to accommodate itself to all wind directions, and always to the leeward of ..."

5. Proceedings of the American Philosophical Society Held at Philadelphia for by American Philosophical Society (1897)
"We have hitherto assumed that the insulator insulated perfectly and the ... We will first assume that there is imperfect insulation in the insulator, ..."

6. International Library of Technology: A Series of Textbooks for Persons by International Textbook Company (1901)
"Furthermore, the diameter of the insulator, both external and internal, should be as small as is consistent with its strength, for the smaller this diameter ..."

7. Modern Practice of the Electric Telegraph: A Handbook for Electricians and by Franklin Leonard Pope (1874)
"Hard rubber is in itself a better insulator than glass ; but its surface, ... THE GLASS insulator.—The insulator most commonly employed in this country is ..."

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