Nephron rhymes with:
aequitron, agouron, altron, certron, chemetron, cyclotron, electron, elektron, enron, eron, interferon, invitron, milacron, negatron, oxymoron, phototron, solitron, tebuthiuron, telectron, tevatron, textron, ticketron, vernitron
Nephron sounds like:
neoprene, new-bern, newbern, newborn, newburn, nonfarm, novopharm, nvryan