smelter

Concise Oxford English Dictionary © 2008 Oxford University Press:
smelt1

▶verb extract (metal) from its ore by a process involving heating and melting.

■ extract metal from (ore) by this process.

– derivatives
smelter noun,
smelting noun.

– origin C16: from MDu., Mid. Low Ger. smelten.

Concise Oxford English Dictionary © 2008 Oxford University Press:
smelt2

past and past participle of smell.

Concise Oxford English Dictionary © 2008 Oxford University Press:
smelt3

▶noun (pl. same or smelts) a small silvery fish of both marine and fresh water. [Osmerus and other genera.]

– origin OE; obscurely rel. to various European names of fish; cf. smolt.