Definition of reagency in English:

reagency

noun

Chemistry
  • [mass noun] Reactive power or operation.

    • ‘It was now found that a free base of the general formula could be yielded if the free base is manufactured by releasing it with an appropriate reagency from a high purity, crystalline salt.’
    • ‘The acid reaction is thus accounted for, as well as the deposition.’

Pronunciation:

reagency

/rɪˈeɪdʒ(ə)nsi/