Definition of reactor in English:



  • 1An 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.’
    • ‘Commercial nuclear power reactors are clearly terror targets, particularly those near airports.’
    • ‘I think we should develop pebble bed reactors and continue to do research on fusion energy.’
    • ‘I once worked in the control room of an atomic reactor.’
    • ‘The EU regards four of the plant's six reactors as unsafe.’
    • ‘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 nuclear reactor releases energy in the form of heat which is used to generate steam, and the steam to generate electricity.’
    • ‘There have been 300 reactors decommissioned around the world including perhaps 100 commercial power stations.’
    • ‘We're going to restart the five megawatt reactor.’
    • ‘The uranium, less than 5 percent enriched, will be used for fuel for civilian reactors.’
    • ‘Under the agreement, the U.S. is leading an international effort to build two light-water reactors in North Korea.’
    • ‘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 downside is that all the criteria needed to build a fusion reactor are rather difficult to achieve simultaneously.’
    • ‘In the end, Bulgaria agreed to close the four old reactors at the plant.’
    • ‘A colony on the moon almost certainly would require an atomic reactor for power.’
    • ‘And they have reactivated a mothballed nuclear reactor that can produce weapons-grade plutonium.’
    • ‘I think we have more chance of turning it into a light-water fusion reactor.’
    • ‘The plant's reactor No.1 was originally scheduled to go online in July 2004.’
    1. 1.1A container or apparatus in which substances are made to react chemically, especially one in an industrial plant.
      • ‘A green chemistry example concerns the transfer of raw polymer resin into reactors.’
      • ‘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.’
      • ‘Fossil fuel burning plants could simply place a serpentine reactor as the last component of their emissions clean up and sequester carbon on site.’
      • ‘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.’
  • 2Medicine
    A person who shows an immune response to a specific antigen or an adverse reaction to a drug or other substance.

    • ‘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.’
    • ‘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.’
  • 3Physics
    A coil or other component that provides reactance in a circuit.