Definition of advanced gas-cooled reactor in English:

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advanced gas-cooled reactor

Pronunciation: /ədˌvanst ˌɡasko͞old rēˈaktər/
(abbreviation AGR)


A nuclear reactor in which the coolant is carbon dioxide, with uranium oxide fuel clad in steel and using graphite as a moderator.
Example sentences
  • An advanced gas-cooled reactor on the site is also undergoing decommissioning.
  • The historic costs of decommissioning British Magnox and advanced gas-cooled reactors do not bear comparison with the costs of decommissioning modern plants.
  • The cracks were spotted in graphite bricks in the cores of all the company's advanced gas-cooled reactors, or AGRs. Collectively, they provide the country with nearly one fifth of its electricity.

For editors and proofreaders

Syllabification: ad·vanced gas-cooled re·ac·tor

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