supercritical

英[ˌsjuːpə'krɪtɪkəl] 美[ˌsuːpə'krɪtəkəl]
  • adj. 超临界的;吹毛求疵的
Adjective:
  1. (especially of fissionable material) able to sustain a chain reaction in such a manner that the rate of reaction increases