Nucleonics rhymes with:
avionics, histrionics, audiotronics, avionics, centronics, conics, diasonics, electronics, electronics', endotronics, endotronics', fibronics, flextronics, harmonics, histrionics, ionics, lasersonics, lumonics, microelectronics, mnemonics, onyx, personics, philharmonic's, phonics, photronics, plantronics, respironics, sconnix, siliconix, sonics, tectonics, tektronix, telectronics, telephonics, tonics, vitronics
Nucleonics sounds like:
newslink, newslink's, niclaneshia, niclaneshia's, nonchalance, nucleonic