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reactor

[ ree-ak-ter ]
/ riˈæk tər /
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noun

a person or thing that reacts or undergoes reaction.
Electricity. a device whose primary purpose is to introduce reactance into a circuit.
Immunology, Veterinary Medicine. a patient or animal that reacts positively towards a foreign material.
Physics. nuclear reactor.
Chemistry. (especially in industry) a large container, as a vat, for processes in which the substances involved undergo a chemical reaction.

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The rainy weather could not ________ my elated spirits on my graduation day.

Origin of reactor

First recorded in 1885–90; 1940–45 for def. 4; react + -or2
non·re·ac·tor, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for reactor

reactor
/ (rɪˈæktə) /

noun

chem a substance, such as a reagent, that undergoes a reaction
short for nuclear reactor
a vessel, esp one in industrial use, in which a chemical reaction takes place
a coil of low resistance and high inductance that introduces reactance into a circuit
med a person sensitive to a particular drug or agent
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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