refractories - Meaning in Hindi

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refractory - Meaning in Hindi

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Definitions and Meaning of refractories in English

refractory adjective

1. stubbornly resistant to authority or control

   Synonyms

   fractious, recalcitrant

   अक्खड़, उच्छृंखल, उच्छृङ्खल, उछृंखल, उजड्ड, उजबक, उज्जट, उज्झड़, उदंड, उदण्ड, उद्दंड, उद्दण्ड, प्रगल्भ, बरबंड, बागड़बिल्ला, सीनाजोर, सीनाज़ोर

   Examples

   • "a fractious animal that would not submit to the harness"
   • "a refractory child"
2. temporarily unresponsive or not fully responsive to a process or stimulus

   Example

   • "the refractory period of a muscle fiber"
3. not responding to treatment

   Synonyms

   stubborn

   Examples

   • "a refractory case of acne"
   • "a stubborn infection"
   • "stubborn rust stains"

refractory noun

1. lining consisting of material with a high melting point; used to line the inside walls of a furnace

   Synonyms

   furnace lining

Description

In materials science, a refractory is a material that is resistant to decomposition by heat or chemical attack that retains its strength and rigidity at high temperatures. They are inorganic, non-metallic compounds that may be porous or non-porous, and their crystallinity varies widely: they may be crystalline, polycrystalline, amorphous, or composite. They are typically composed of oxides, carbides or nitrides of the following elements: silicon, aluminium, magnesium, calcium, boron, chromium and zirconium. Many refractories are ceramics, but some such as graphite are not, and some ceramics such as clay pottery are not considered refractory. Refractories are distinguished from the refractory metals, which are elemental metals and their alloys that have high melting temperatures.

Also see "Refractory" on Wikipedia

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