ebonite

Definitions

  • WordNet 3.6
    • n ebonite a hard nonresilient rubber formed by vulcanizing natural rubber
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Webster's Revised Unabridged Dictionary
    • n Ebonite (Chem) A hard, black variety of vulcanite. It may be cut and polished, and is used for many small articles, as combs and buttons, and for insulating material in electric apparatus.
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Century Dictionary and Cyclopedia
    • n ebonite A black, hardened compound of caoutchoue or gutta-percha and sulphur in different proportions, to which other ingredients may be added for specific uses; properly, black vulcanite, but used also as a general synonym of vulcanite (which see).
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Chambers's Twentieth Century Dictionary
    • Ebonite vulcanite (see under Vulcan)
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Etymology

Chambers's Twentieth Century Dictionary
L.,—Gr. ebenos; cf. Heb. hodnīm, pl. of hobni, obnieben, a stone.

Usage

In literature:

We had forty ski-poles, with ebonite points.
"The South Pole, Volumes 1 and 2" by Roald Amundsen
The index of refraction of ebonite was found by Profs.
"Scientific American Supplement, No. 288" by Various
Opposite to this flat disk there is a brass strip secured to the ebonite cap.
"Scientific American Supplement, No. 810, July 11, 1891" by Various
One end of the stalk is held in ebonite forceps and vibrated.
"Response in the Living and Non-Living" by Jagadis Chunder Bose
It is easy to make large tubes out of sheet ebonite by taking advantage of the softening which ebonite undergoes in boiling water.
"On Laboratory Arts" by Richard Threlfall
His fingers pressed the ebonite disc.
"The Submarine Hunters" by Percy F. Westerman
In the study of static electricity, ordinary ebonite combs can be used to great advantage.
"How Two Boys Made Their Own Electrical Apparatus" by Thomas M. (Thomas Matthew) St. John
On the edge of the table, before these lamps, was a switch, with black ebonite handle.
"The White Lie" by William Le Queux
The points of a row of steel-pointed pins, screwed into a frame of ebonite, can be brought within 1/200 in.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3" by Various
Ebonite, paraffine, shellac, etc., are insulators, or very poor conductors.
"Electricity and Magnetism" by Elisha Gray
In front of them a disk of ebonite or glass, having carriers of metal fixed to its edge, was rotated by a winch.
"Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2" by Various
The metal disc is then placed on top of the ebonite plate.
"The New Gresham Encyclopedia" by Various
Ebonite is used, but is objectionable because it spoils the flavor of the tobacco.
"Tobacco Leaves" by W. A. Brennan
A strong smell of burning gutta-percha and ebonite greeted Peter as he gained the vicinity of the wireless-cabin.
"The Wireless Officer" by Percy F. Westerman
The winding is usually covered and the ends capped with ebonite heads so that the core wires are not exposed.
"Hawkins Electrical Guide, Number One" by Nehemiah Hawkins
At the farther extremity is an ebonite or boxwood collar ending in a rather wider metal ring.
"Electric Bells and All About Them" by S. R. Bottone
The insulating ebonite tube for such a coil should not be less than 1/4 in.
"Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 5" by Various
He slowly turned the ebonite knob of the condenser, but to no avail.
"The Voice from the Void" by William Le Queux
Hard rubber (ebonite), being a non-conductor of electricity, makes the best handle.
"Manual Training Toys for the Boy's Workshop" by Harris W. Moore
He placed his hand upon one of the ebonite knobs of the complicated apparatus and slowly turned it.
"The Gay Triangle" by William Le Queux
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In poetry:

The mounted disk of ebonite
Has whirled before, nor whirled in vain;
Rowland of Troy, that doughty knight,
Convection currents did obtain
In such a disk, of power to wheedle,
From its loved North the subtle needle.
"Answer To Tait" by James Clerk Maxwell

In news:

The production line of Bari Woodwind mouthpieces include ebonite mouthpieces , hard rubber mouthpieces , synthetic mouthpieces , a metal mouthpiece for saxophone clarinet, bass clarinet, soprano, alto sax, tenor saxophone and baritone.
The Ebonite Demo Day was last Saturday at Towne Bowling Academy, and by any measure, it was a rousing success.
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