moderator of neutrons

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• Moderator — often refers to the chairman of a meeting. Specifically, it may refer to: Contents 1 Government 2 Internet 3 Religion 4 Other uses …   Wikipedia

• moderator — [mäd′ər āt΄ər] n. [ME moderatour < L moderator] a person or thing that moderates; specif., a) a person who presides at a town meeting, debate, assembly, etc. b) the presiding officer of a governing body, as of the Presbyterian Church c) a… …   English World dictionary

• Moderator — neutronų lėtiklis statusas T sritis Energetika apibrėžtis Medžiaga, naudojama neutronų energijai branduoliniuose reaktoriuose mažinti. atitikmenys: angl. neutron moderator vok. Bremssubstanz, f; Moderator, m; Neutronenmoderator, m rus.… …   Aiškinamasis šiluminės ir branduolinės technikos terminų žodynas

• moderator — moderatorial /mod euhr euh tawr ee euhl, tohr /, adj. moderatorship, n. /mod euh ray teuhr/, n. 1. a person or thing that moderates. 2. a person who presides over a panel discussion on radio or television. 3. a presiding officer, as at a public… …   Universalium

• moderator — noun Date: circa 1560 1. one who arbitrates ; mediator 2. one who presides over an assembly, meeting, or discussion: as a. the presiding officer of a Presbyterian governing body b. the nonpartisan presiding officer of a town meeting c. the… …   New Collegiate Dictionary

• moderator — mod·er·a·tor mäd ə .rāt ər n a substance (as graphite, deuterium in heavy water, or beryllium) used for slowing down neutrons in a nuclear reactor …   Medical dictionary

• Moderator —   A material, such as ordinary water, heavy water, or graphite, used in a reactor to slow down high velocity neutrons, thus increasing the likelihood of further fission.   U.S. Dept. of Energy, Energy Information Administration s Energy Glossary …   Energy terms

• moderator — noun 1》 an arbitrator or mediator.     ↘a presiding officer, especially a chairman of a debate.     ↘a Presbyterian minister presiding over an ecclesiastical body. 2》 Brit. a person who moderates examination papers. 3》 Physics a substance used in …   English new terms dictionary

• moderator — mod•er•a•tor [[t]ˈmɒd əˌreɪ tər[/t]] n. 1) a person or thing that moderates 2) sbz a person who presides over a group event or meeting 3) phs a substance, as graphite or heavy water, used to slow neutrons to speeds at which they are more… …   From formal English to slang

• moderator — /ˈmɒdəreɪtə / (say moduhraytuh) noun 1. someone or something that moderates. 2. a presiding officer, as over a public forum, a legislative body, or an ecclesiastical body in the Presbyterian and Uniting Churches. 3. Physics a substance, such as… …  

• moderator — n. 1 an arbitrator or mediator. 2 a presiding officer. 3 Eccl. a Presbyterian minister presiding over an ecclesiastical body. 4 an examiner for Moderations. 5 Physics a substance used in a nuclear reactor to retard neutrons. Derivatives:… …   Useful english dictionary