Look up: hardening

1. hardening
   [n] - abnormal hardening or thickening of tissue 2. [n] - the process of becoming hard or solid by cooling or drying or crystallization 3. [n] - the act of making something harder (firmer or tighter or more compact)
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. Hardening
   The act or process of becoming hard or harder.
   Found on http://www.hobbyshed.co.uk/model_kit_mod
   
   
3. Hardening
   Increasing the hardness by suitable treatment, usually involving heating and cooling. When applicable,the following more specific terms should be used: age hardening, case hardening, flame hardening, inductionhardening, precipitation hardening,, quench hardening and through hardening. See also: Hard...
   Found on http://www.diracdelta.co.uk/science/sour
   
   
4. hardening
   carburizing : the introduction of carbon into the surface by heating to and holding at a suitable temperature usually above the transformation range in contact with a suitable source of carbon. Carburizing is usually followed by direct quenching or by other suitable heat treatment Category: Iron ...
   Found on http://www.mijnwoordenboek.nl/definition
   
   
5. Hardening
   A process by which the tolerance of extreme conditions, e.g. cold or drought, is increased by prior exposure to the same but less extreme conditions.
   Found on http://www.blackwellpublishing.com/Towns
   
   
6. Hardening
   Bitumen undergoes hardening when it is heated excessively, it is actually an oxidation, and can therefore happen to mixed material which is stored in hot storage, in the presence of oxygen.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
7. Hardening
   Hard'en·ing noun 1. Making hard or harder. 2. That which hardens, as a material used for converting the surface of iron into steel.
   Found on http://www.encyclo.co.uk/webster/H/13
   
   
8. hardening
   noun the act of making something harder (firmer or tighter or more compact)
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
9. hardening
   (hahr´dәn-ing) sclerosis. the process of making more firm. hardening of arteries popular term for arteriosclerosis.
   Found on http://www.encyclo.co.uk/local/21001
   
   
10. Hardening
    • (n.) Making hard or harder. • (n.) That which hardens, as a material used for converting the surface of iron into steel. • (p. pr. & vb. n.) of Harden
    Found on http://thinkexist.com/dictionary/meaning
    
    
11. hardening
    (from the article `cement`) The setting and hardening of a cement is a continuous process, but two points are distinguished for test purposes. The initial setting time is the ... Hardening heat treatments invariably involve heating to a sufficiently high temperature to dissolve solute-rich precipitates. The metal is then ... Hardenin...
    Found on http://www.britannica.com/eb/a-z/h/16
    
    
12. Hardening
    A method of heat treating metals by heating to a temperature within, or above, the critical range, holding at that temperature for a given time, and then cooling rapidly, usually by quenching in oil or water.
    Found on http://www.encyclo.co.uk/local/21038
    
    
13. Hardening
    When portland cement is mixed with enough water to form a paste, the compounds of the cement react with water to form cementitious products that adhere to each other and to the intermixed sand and stone particles and become very hard. As long as moisture is present, the reaction may continue for yea...
    Found on http://www.pavement.com/glossary/A.html
    
    
14. hardening
    heat treatment consisting in heating the charge to the austenitizing temperature, soaking and fast cooling in order to obtain martensite or bainite structure
    Found on http://www.electropedia.org/iev/iev.nsf/
    
    
15. hardening
    hardening, in metallurgy, treatment of metals to increase their resistance to penetration. A metal is harder when it has small grains, which result when the metal is cooled rapidly. Sometimes small areas on the surface of a casting are given a fine-grain structure by chill hardening; metal pieces (c...
    Found on http://www.infoplease.com/ce6/sci/A08226
    
    
16. hardening
    Type: Term Pronunciation: har′den-ing Definitions: 1. A condition of lessened reactions to allergens from repeated or prolonged nontherapeutic exposure, similar to hyposensitization. 2. Any procedure in tissue preparation for examinations (sectioning for microscopy) that renders the tissue firmer.
    Found on http://www.medilexicon.com/medicaldictio
    
    
17. Hardening
    (computing) In computing, `hardening` is usually the process of securing a system by reducing its surface of vulnerability. A system has a larger vulnerability surface the more that it does; in principle a single-function system is more secure than a multipurpose one. Reducing available vecto...
    Found on http://en.wikipedia.org/wiki/Hardening
    
    
18. Hardening
    (metallurgy) `Hardening` is a metallurgical and metalworking process used to increase the hardness of a metal. The hardness of a metal is directly proportional to the uniaxial yield stress at the location of the imposed strain. A harder metal will have a higher resistance to plastic deformati...
    Found on http://en.wikipedia.org/wiki/Hardening
    
    
19. Hardening
    (botany) `Hardening` in botany is the process by which an individual plant becomes tolerant to the effects of freezing during a period of weeks to months. It is a three stage process. During the first stage, carbohydrates are translocated to the roots of the plant and cell membrane permeabili...
    Found on http://en.wikipedia.org/wiki/Hardening