Base metal and Noble metal

Base metal noun - A metal that is common and not considered precious.

Noble metal and base metal are semantically related in group of chemical elements topic. In some cases you can use "Noble metal" instead a noun phrase "Base metal".

Noble metal noun - Any metal that is resistant to corrosion or oxidation.

Base metal and noble metal are semantically related in group of chemical elements topic. You can use "Base metal" instead a noun phrase "Noble metal".