Look up: Moderator

1. 
   Moderator
   A substance such as hydrogen, deuterium, oxygen or paraffin capable of slowing fast nuetrons upon collision.
   Found on http://home.nas.net/~dbc/cic_hamilton/di
   
   
2. 
   Moderator
   General term for materials used in nuclear reactors to reduce the energy (speed) of Fast Neutrons to that of Thermal (slow) Neutrons . The thermal neutrons are then able to interact and Fission with U-235.
   Found on http://www.ionactive.co.uk/glossary_atoz
   
   
3. 
   moderator
   [n] - any substance used to slow down neutrons in nuclear reactors 2. [n] - someone who presides over a forum or debate 3. [n] - someone who mediates disputes and attempts to avoid violence
   Found on http://www.webdictionary.co.uk/definitio
   
   
4. 
   Moderator
   In a nuclear fission reactor, the moderator slows fast neutrons down. Slower moving neutrons are more effective at keeping the chain reaction going by causing more uranium nuclei to break apart. Each fission event releases fast neutrons - the moderator is therefore required to slow them down
   Found on http://www.users.zetnet.co.uk/computing/
   
   
5. 
   Moderator
   the person who runs a conference or newsgroup - they have the responsibility of selecting which postings are used and which not
   Found on http://www.archivemag.co.uk/
   
   
6. 
   Moderator
   A material used to slow down the neutrons in a nuclear reactor, thus increasing their chances of being obsorbed by a fissile material.Some of the materials used as moderators are:graphiteheavy waterwater
   Found on http://www.diracdelta.co.uk/science/sour
   
   
7. 
   Moderator
   In the Church of Scotland, the minister chosen to act as president of the annual General Assembly. ...
   Found on http://www.thehistorychannel.co.uk/site/
   
   
8. 
   Moderator
   A material such as light or heavy water or graphite used in a reactor to slow down fast neutrons by collision with lighter nuclei so as to expedite further fission
   Found on http://www.world-nuclear.org/info/inf51.
   
   
9. 
   Moderator
   A material such as light or heavy water or graphite used in a reactor to slow down fast neutrons by collision with lighter nuclei so as to expedite further fission.
   Found on http://www.energy-choices.com/index.php?
   
   
10. 
    Moderator
    A material such as light or heavy water or graphite used in a reactor to slow down fast neutrons so as to expedite further fission.
    Found on http://www.theiet.org/factfiles/energy/n
    
    
11. 
    moderator
    A person, or small group of people, who manages a moderated mailing list or Usenet newsgroup. Moderators are responsible for determining which email submissions are passed on to the list or newsgroup.
    Found on
    
    
12. 
    moderator
    a material used to reduce,by scattering collisions and without appreciable capture,the kinetic energy of neutrons Category: Nuclear industry (with applied atomic and nuclear physics) • Person who presides over panel discussions and forums. Category: General • the person who presides at a town meeting, debate, etc. Category: General
    Found on http://www.mijnwoordenboek.nl/definition
    
    
13. 
    Moderator
    Mod'er·a`tor noun [ Latin : confer French modérateur .] 1. One who, or that which, moderates, restrains, or pacifies. Sir W. Raleigh. « Angling was . . . a moderator of passions.» Walton. 2. The officer who presides over an assembly to preserve order, propose questions, regulate the proceedings, and declare the votes. 3. In the Uni ...
    Found on http://www.encyclo.co.uk/webster/M/86
    
    
14. 
    moderator
    noun someone who mediates disputes and attempts to avoid violence
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
15. 
    moderator
    noun any substance used to slow down neutrons in nuclear reactors
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
16. 
    Moderator
    `Moderator`, a Latin word for `manager, ruler, director`, can refer to: * Moderator provinciae, the title of certain Roman provincial governors. * a Scots and (originally) Scottish English, gender-neutral word that approximates chairman, someone who convenes, heads and `moderates` the discussion in a meeting, such as the nonpartisan presiding officer of a town meeting * The chairperson of a church court in Presbyterian churches; this includes M...
    Found on http://en.wikipedia.org/wiki/Moderator
    
    
17. 
    Moderator
    • (n.) In the University of Oxford, an examiner for moderations; at Cambridge, the superintendant of examinations for degrees; at Dublin, either the first (senior) or second (junior) in rank in an examination for the degree of Bachelor of Arts. • (n.) A mechamical arrangement for regulating motion in a machine, or producing equality of ef...
    Found on http://thinkexist.com/dictionary/meaning
    
    
18. 
    moderator
    (from the article `nuclear reactor`) ...12). Materials that contain atoms of this kind—water, heavy water, beryllium metal and oxide, and graphite—are deliberately incorporated into the ... Yttrium dihydride is used as a moderator in reactors to slow down neutrons. Certain rare earths are also used in shielding materials becau...
    Found on http://www.britannica.com/eb/a-z/m/106
    
    
19. 
    Moderator
    A material such as light or heavy water or graphite used in a reactor to slow down fast neutrons so as to expedite further fission.
    Found on http://www.sea-us.org.au/glossary.html
    
    
20. 
    moderator
    The leader and main person responsible for an inspection or other review process.…
    Found on http://www.imbus.de/glossary/glossary.pl
    
    
21. 
    moderator
    material used to reduce, by scattering collisions and without appreciable capture, the kinetic energy of neutrons
    Found on http://www.electropedia.org/iev/iev.nsf/
    
    
22. 
    moderator
    in a computer conference, a person who receives the proposed articles and may accept, modify, or reject them
    Found on http://www.electropedia.org/iev/iev.nsf/
    
    
23. 
    moderator
    Principle of a moderator Credit: European Nuclear Society A substance used in nuclear reactors to reduce the speed of fast neutrons produced by nuclear fission. These substances consist of atoms of light elements, such as deuterium in heavy water, graphite, and beryllium, to which neutrons are...
    Found on http://www.daviddarling.info/encyclopedi