hard rubber

hard rubber
noun
a hard nonresilient rubber formed by vulcanizing natural rubber
• Syn: ↑vulcanite, ↑ebonite
• Hypernyms: ↑rubber, ↑natural rubber, ↑India rubber, ↑gum elastic, ↑caoutchouc

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noun
: a firm relatively inextensible rubber or rubber product: as
a. : a normally black substance having the texture of horn and made by vulcanizing natural rubber with high percentages (as about 30 to 50 percent) of sulfur and with or without other compounding ingredients
b. : a similar substance made from certain synthetic rubbers (as GR-S and nitrile rubber) and sulfur
c. : a similar substance made from natural or certain synthetic rubbers by the use of organic vulcanizing agents without elemental sulfur

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rubber vulcanized with a large amount of sulfur, usually 25-35 percent, to render it stiff and comparatively inflexible.
[1855-60]

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hard rubber noun
Ebonite
• • •
Main Entry: ↑hard

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hard rubber,
a hard, black substance made by heating rubber with a large quantity of sulfur; ebonite; vulcanite.

Useful english dictionary. 2012.

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Look at other dictionaries:

  • Hard rubber — Hard Hard (h[aum]rd), a. [Compar. {Harder} ( [ e]r); superl. {Hardest}.] [OE. hard, heard, AS. heard; akin to OS. & D. hard, G. hart, OHG. herti, harti, Icel. har[eth]r, Dan. haard, Sw. h[*a]rd, Goth. hardus, Gr. kraty s strong, ka rtos, kra tos …   The Collaborative International Dictionary of English

  • Hard rubber — Rubber Rub ber, n. 1. One who, or that which, rubs. Specifically: (a) An instrument or thing used in rubbing, polishing, or cleaning. (b) A coarse file, or the rough part of a file. (c) A whetstone; a rubstone. (d) An eraser, usually made of… …   The Collaborative International Dictionary of English

  • hard rubber — n. a firm, inelastic substance made by treating crude rubber with a large amount of sulfur and subjecting it to intense heat; ebonite: used for combs, electrical insulation, etc …   English World dictionary

  • hard rubber — ebonitas statusas T sritis chemija apibrėžtis Natūraliojo kaučiuko vulkanizatas, turintis 30–60% sieros. atitikmenys: angl. ebonite; hard rubber; vulcanite rus. эбонит …   Chemijos terminų aiškinamasis žodynas

  • hard rubber — ebonitas statusas T sritis fizika atitikmenys: angl. ebonite; hard rubber; vulcanite vok. Ebonit, m; Hartgummi, m rus. эбонит, m pranc. ébonite, f; caoutchouc durci, m …   Fizikos terminų žodynas

  • hard rubber — hard′ rub′ber n. chem. rubber vulcanized with a large amount of sulfur, usu. 25–35 percent, to render it stiff and comparatively inflexible …   From formal English to slang

  • hard rubber — rubber vulcanized with a large amount of sulfur, usually 25 35 percent, to render it stiff and comparatively inflexible. [1855 60] * * * …   Universalium

  • hard rubber — noun Date: 1860 a firm rubber or rubber product; especially a normally black horny substance made by vulcanizing natural rubber with high percentages of sulfur …   New Collegiate Dictionary

  • hard rubber — /had ˈrʌbə/ (say hahd rubuh) noun rubber vulcanised with a large amount of sulphur, usually 25–35 per cent, to render it stiff and comparatively inflexible …  

  • Hard rubber — Вулканизированная резина; Эбонит …   Краткий толковый словарь по полиграфии

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