base metal

noun — 4 senses

base metal

noun
1

Chemistry, Electrochemistry, Natural sciences, Physical sciences Any metal at the lower end of the electrochemical series that oxidizes readily.

2

Engineering, Metallurgy, Natural sciences, Physical sciences The metal to be welded (rather than that used to weld).

3

A common or inexpensive metal.

4

Alchemy, Pseudoscience one that was hoped to be transmuted into a precious metal.

Related terms
noble metal

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.