Definition of reactor in English:



  • 1

    (also nuclear reactor)
    An apparatus or structure in which fissile material can be made to undergo a controlled, self-sustaining nuclear reaction with the consequent release of energy.

    • ‘The difference between an atomic bomb and a nuclear reactor is in the speed and control of the release of energy.’
    • ‘The nuclear reactor releases energy in the form of heat which is used to generate steam, and the steam to generate electricity.’
    • ‘Commercial nuclear power reactors are clearly terror targets, particularly those near airports.’
    • ‘And they have reactivated a mothballed nuclear reactor that can produce weapons-grade plutonium.’
    • ‘Under the agreement, the U.S. is leading an international effort to build two light-water reactors in North Korea.’
    • ‘I think we have more chance of turning it into a light-water fusion reactor.’
    • ‘Although Cuba does not yet have any operating nuclear power reactors, it is a signatory to this convention.’
    • ‘But, pebble reactors do not have the same crash shields required of light-water breeder reactors.’
    • ‘The downside is that all the criteria needed to build a fusion reactor are rather difficult to achieve simultaneously.’
    • ‘We're going to restart the five megawatt reactor.’
    • ‘I think we should develop pebble bed reactors and continue to do research on fusion energy.’
    • ‘In the end, Bulgaria agreed to close the four old reactors at the plant.’
    • ‘There have been 300 reactors decommissioned around the world including perhaps 100 commercial power stations.’
    • ‘A colony on the moon almost certainly would require an atomic reactor for power.’
    • ‘I once worked in the control room of an atomic reactor.’
    • ‘The EU regards four of the plant's six reactors as unsafe.’
    • ‘The plant's reactor No.1 was originally scheduled to go online in July 2004.’
    • ‘However, as is well known, the reactor began to shut down spontaneously within a few hours.’
    • ‘The temperature in the reactors began to rise, melting some steel plates.’
    • ‘The uranium, less than 5 percent enriched, will be used for fuel for civilian reactors.’
    1. 1.1A container or apparatus in which substances are made to react chemically, especially one in an industrial plant.
      • ‘The dehydrogenation and selective hydrogenation reactors were run continuously and the product collected.’
      • ‘Solar receivers absorb this concentrated solar radiation and deliver it, in the form of high-temperature heat, to a chemical reactor wherein an endothermic reaction results in the production of solar fuels.’
      • ‘A green chemistry example concerns the transfer of raw polymer resin into reactors.’
      • ‘The organ was placed in a Teflon bag that neutrons can pass through and taken to a research reactor nearby, where it was irradiated with neutrons.’
      • ‘Fossil fuel burning plants could simply place a serpentine reactor as the last component of their emissions clean up and sequester carbon on site.’
  • 2Medicine
    A person who shows an immune response to a specific antigen or an adverse reaction to a drug or other substance.

    • ‘There is an urgent need to redefine the criteria for revaccination in abortive reactors who show preliminary response stages but do not develop a scar.’
    • ‘Production of IL - 12, IL - 4 and IL-IO was similar in TB patients and healthy tuberculin reactors.’
    • ‘The response of the eight reactors to the inhaled bronchodilator given at 6 hours (the end of the observation time) is shown in Figure 4.’
    • ‘With a high rate of spontaneous cure of the illness, such studies need a large number of subjects to balance the expected high placebo reactors.’
  • 3Physics
    A coil or other component which provides reactance in a circuit.