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refractoriness

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Refractoriness
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re⋅frac⋅to⋅ry

  [ri-frak-tuh-ree] adjective, noun, plural -ries.
Use refractoriness in a Sentence
–adjective
1. hard or impossible to manage; stubbornly disobedient: a refractory child.
2. resisting ordinary methods of treatment.
3. difficult to fuse, reduce, or work, as an ore or metal.
–noun
4. a material having the ability to retain its physical shape and chemical identity when subjected to high temperatures.
5. refractories, bricks of various shapes used in lining furnaces.
Origin:
1600–10; var. of refractary (by analogy with adjectives in -ory 1 ) < L refrāctārius stubborn, obstinate, equiv. to refrāct(us) (see refract ) + -ārius -ary

Related forms:
re⋅frac⋅to⋅ri⋅ly, adverb
re⋅frac⋅to⋅ri⋅ness, noun

Synonyms:
1. obstinate, perverse, mulish, headstrong, intractable, disobedient, recalcitrant, ungovernable. See unruly.

Antonyms:
1. obedient, tractable.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Refractoriness
We offer advanced testing solutions for flammability analysis
www.atlas-mts.com
Refractory Manufacturer
Refractory From China Manufacturer High Strength at High Temperatures!
www.abrasives.com.cn
re·frac·to·ry   (rĭ-frāk'tə-rē)   
adj.  

  1. Obstinately resistant to authority or control. See Synonyms at unruly.

  2. Difficult to melt or work; resistant to heat: a refractory material such as silica.

  3. Resistant to treatment: a refractory case of acne.

n.   pl. re·frac·to·ries

  1. One that is refractory.

  2. Material that has a high melting point.


[Alteration (influenced by adjectives in -ory) of obsolete refractary, from Latin refrāctārius, from refrāctus, past participle of refringere, to break up; see refract.]
re·frac'to·ri·ly adv., re·frac'to·ri·ness n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: re·frac·to·ri·ness
Pronunciation: ri-'frak-t(&-)rE-n&s
Function: noun
: the insensitivity to furtherimmediate stimulation that develops in irritable and especially nervous tissue as a result of intense or prolonged stimulation

Main Entry: re·frac·to·ry
Pronunciation: ri-'frak-t(&-)rE
Function: adjective
1 : resistant to treatment or cure refractory fulminating lesion>refractory to multiple intensive therapies —Michelle L. Bennett et al>
2 : unresponsive to stimulus refractory period of a muscle fiber>
3 : resistant or not responding to an infectious agent : IMMUNE refractory to reinfection>
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

refractory re·frac·to·ry (rĭ-frāk'tə-rē)
adj.

  1. Resistant to treatment, as a disease.

  2. Unresponsive to stimuli, as a muscle or nerve fiber.

re·frac'to·ri·ness n.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
refractory   (rĭ-frāk'tə-rē)  Pronunciation Key 

  1. Having a high melting point. Ceramics that are made from clay and minerals are often refractory, as are metal oxides and carbides. Refractory materials are often used as liners in furnaces.

  2. Resistant to heat.

  3. Of or relating to a refractory period.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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