a row of electrolytic cells used in the production of aluminium
potline in American English
(ˈpɑtˌlain)
noun
Metallurgy
a row of electrolytic cells for reducing certain metals, as aluminum, from fused salts
Word origin
[1940–45; pot1 + line1]This word is first recorded in the period 1940–45. Other words that entered Englishat around the same time include: airlift, black box, redline, update, whiteout