Definition of nucleonics in English:

nucleonics

plural noun

  • [treated as singular] The branch of science and technology concerned with atomic nuclei and nucleons, especially the exploitation of nuclear power.

    • ‘But nucleonics won't be getting all the money at once.’
    • ‘Therefore quantum nucleonics is not an approach suitable for large scale energy storage use.’

Origin

1940s: from nuclear, on the pattern of electronics.

Pronunciation:

nucleonics

/ˌnjuːklɪˈɒnɪks/