nonconductors

The thick neutral hangings, and the dark blinds, and the heavy heap of bed – clothes, were all designed to hold in sleep, and act as nonconductors to the day and getting up.

The Life and Adventures of Martin Chuzzlewit 2006

Dread of cold led the Yakuts of the Lena Valley to glaze the windows of their huts with slabs of ice, which are better nonconductors of heat and cold, and can be made more perfectly air-tight than glass.

Influences of Geographic Environment On the Basis of Ratzel's System of Anthropo-Geography Ellen Churchill Semple 1897

The Mantis has outstripped humanity in her knowledge of thermic nonconductors or insulators.

Social Life in the Insect World Jean-Henri Fabre 1869

The thick neutral hangings, and the dark blinds, and the heavy heap of bed-clothes, were all designed to hold in sleep, and act as nonconductors to the day and getting up.

Martin Chuzzlewit Charles Dickens 1841

In semiconductors, there are far fewer free electrons around, but we can inject or remove electrons to turn semiconductors into conductors or nonconductors, making a switch.

Ars Technica Chris Lee 2011

The electric ethers may be separately accumulated by contact of conductors with nonconductors, by vicinity of the two ethers, by heat, and by decomposition.

Note XII 1803

Two kinds of electric ether; atmospheres of electricity surround all separate bodies; atmospheres of similar kinds repel, of different kinds attract each other strongly; explode on uniting; nonconductors; imperfect conductors; perfect conductors; torpedo, gymnotus, galvanism.

Contents 1803

But both these kinds of nonconductors are impervious to either of the electric ethers; as those ethers being already combined with other bodies, will not unite with each other, or be removed from their situations by each other.

Note XII 1803

The conductors of electricity, as well as the nonconductors of it, have probably a portion of the vitreous and resinous ethers combined with them, and have also another portion of these ethers diffused round them, which forms their natural or spontaneous adhesive atmospheres; and which exists in different proportions round them correspondent in quantity to those which are combined with them, but opposite in kind.

Note XII 1803

Hence the nonconductors of electricity are of two kinds; such as are combined with vitreous ether, as resin, and sulphur; and such as are combined with resinous ether, as glass, air, silk.

Note XII 1803