A material that is a very poor conductor of electricity. The insulating material is usually a ceramic or fiberglass when used in the transmission line and is designed to support a conductor physical [..]

1801, agent noun in Latin form from insulate (v.). In reference to the glass or earthenware devices to hold telegraph (later telephone) wires, from 1840s.

A material that reduces or stops the flow of electricity.

material that does not conduct heat, electricity, light, or sound.

A material that is highly resistant to electrical and/or thermal conduction.

A material that does not conduct electric current, such as plastic, some kinds of silicon or glass. The term can also refer to a material that does not conduct heat. For clarity, the terms thermal insulator and electrical insulator may be used. (See also Conductor.)

DNA sequence that blocks or insulates the effect of an enhancer; must be located between the enhancer and the promoter to have blocking activity; also may limit the spread of changes in chromatin stru [..]

A term used to describe any material that does not conduct electricity.

Non-conductive resistant materials (rubber, plastic, etc.) that keep electricity on its path.

A non-conducting substance such as porcelain, plastic, glass, rubber, etc.

A DNA

A material such as glass or porcelain with a very tiny electrical or thermal conductivity.

(1) A material that is a poor conductor of heat energy. (2) A material that is a poor conductor of electricity.

  Any material used on top and bottom of an innerspring unit to prevent the upholstery layers from cupping down into the coils.  Some common types are:  a fiber pad, non-woven fabric, netting, wire me [..]

A material through which an electric charge is not readily transferred.

(1) A thermal insulator is a material which does not conduct heat well. Ceramics, stone and plastics are good thermal insulators. Metals are poor thermal insulators as they will quickly heat up or coo [..]

UE A material which does not usually conduct electricity. Air, for example is an insulator. Insulators have a very high (ideally infinite) resistance. Given a suitably high voltage, insulators can be [..]

(n) a material such as glass or porcelain with negligible electrical or thermal conductivity

A material through which energy cannot flow easily (Lessons 19, 23, Lab 3)

 - A device that is used to electrically isolate a conductor or electrical device from ground or a different electrical potential. Electrical insulators are manufactured by Porcelain Products Company and W.H. Salisbury & Company.

An object or material that does not let electricity pass through it.

 Material that strongly resists the flow of electricity through it.

any thing or type of material which is a very poor conductor of electricity. Electrical wires (conductors) are covered on the outside with insulating material in order to guard against accidental short circuits.

Any material that will not allow electricity to easily flow through.

A material (such as plastic or glass) that does not permit electricity to pass through it readily.

Any material that does not allow electrons to flow through it.

Material that does not conduct electricity, such as glass, ceramics or rubber. It prevents the passage of electricity. All transmission and distribution wires are protected by insulators.

A substance or body that resists the flow of electrical current through it. Also see "Conductor:'

A material which strongly resists the flow of electrons through it. The rubber on an electrical cord provides an insulator for the wires. By covering the wires, the electricity cannot go through the rubber and is forced to follow the path of the wires.

A material that opposes the flow of electric current;  the ceramic piece that holds the conductor (wire) to the transmission structure. 

A nonconductor, usually of glass or porcelain, for insulating and supporting electric wires.

— a material that opposes the flow of electric current.

A nonconductor, usually of glass or porcelain, used for insulating and supporting electric wires.

A process or material that prevents or reduces the flow of electricity, heat, or sound from one place to another.

Something that does not allow electricity to flow through it easily. Glass and special rubber are good insulators. Insulators do not allow electricity to flow through them easily because the electrons in their atoms do not move easily from atom to atom.

Device used to keep an electrified fence wire from coming in contact with posts or anything else that would interrupt the flow of the current through the fence line. Usually made from plastic or porce [..]

    A material that has a high resistance to current flow.

A material that blocks the flow of current which is used for a short circuit and shock prevention.

Any material which does not allow electrons to flow through it.

Any material which does not allow electrons to flow through it.

A nonconductor, usually of glass or porcelain, for insulating and supporting electric wires.

a material with a low electrical conductivity; a type of material having a lower energy valence band that is nearly completely filled with electrons and a higher conduction band that is nearly complet [..]

The glass or ceramic cup attached to a crossarm to which a telephone wire is bound Intelligent Infrastructure

A material through which charge does not move easily.

A device or material with a high resistance to electricity flow.

Something that does not allow electricity to flow through it easily. Glass and special rubber are good insulators. Insulators do not allow electricity to flow through them easily because the electrons [..]

A substance that is a poor conductor of electricity as a consequence of a lack of free electrons.

a crystal that has bands that are completely filled or completely empty, with large energy gaps between them. An insulator does not conduct electricity.

A material that prevents the passage of electricity, heat or sound. The plastic coating on wires is an insulator, preventing the wires from coming into electrical contact with each other. Insulators are extensively used in electronics. Most good electrical insulators are also good thermal insulators

A material that prevents the passage of electricity, heat or sound. The plastic coating on wires is an insulator, preventing the wires from coming into electrical contact with each other. Insulators are extensively used in electronics. Most good electrical insulators are also good thermal insulators.

A material which doesn't conduct electrical current. The opposite is a conductor.

material used to protect the transfer of data.

Something that does not allow electricity to flow through it easily. Glass and special rubber are good insulators. Insulators do not allow electricity to flow through them easily because the electrons [..]

A substance such as glass, air, plastic, etc., that will (for all practical purposes) not conduct electricity.

A material of such low electrical conductivity that a flow of current through it can usually be neglected. Similarly, a material of low thermal conductivity, such as that used to insulate structures.

A non-conductor of electricity (or heat)

A substance that does not transmit heat (''thermal insulator''), sound (''acoustic insulator'') or electricity (''electrical insulator''). A non-conductive structure, coating or device that does [..]