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noun
2.
Electricity. a device whose primary purpose is to introduce reactance into a circuit.
3.
Immunology, Veterinary Medicine. a patient or animal that reacts positively towards a foreign material.
4.
Also called atomic pile, chain reactor, chain-reacting pile, nuclear reactor, pile. Physics. an apparatus in which a nuclear-fission chain reaction can be initiated, sustained, and controlled, for generating heat or producing useful radiation.
5.
Chemistry. (especially in industry) a large container, as a vat, for processes in which the substances involved undergo a chemical reaction.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Reactor
is always a great word to know.
So is doohickey. Does it mean:
| a chattering or flighty, light-headed person. |
| a gadget; dingus; thingumbob. |
Collins
World English Dictionary
| reactor (rɪˈæktə) | |
| —n | |
| 1. | chem a substance, such as a reagent, that undergoes a reaction |
| 2. | short for nuclear reactor |
| 3. | a vessel, esp one in industrial use, in which a chemical reaction takes place |
| 4. | a coil of low resistance and high inductance that introduces reactance into a circuit |
| 5. | med a person sensitive to a particular drug or agent |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History
reactor
"one that reacts," 1890 (see reaction). In nuclear sense, attested from 1945.
Online Etymology Dictionary, © 2010 Douglas Harper
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