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base metal

noun

1
: a metal or alloy (such as zinc, lead, or brass) of comparatively low value and relatively inferior in certain properties (such as resistance to corrosion)
opposed to noble metal
2
: the metal to which a coating or plating is applied : the metal existing underneath a coating or plating
3
: the chief constituent of any alloy
4
: the metal composing parts to be welded

Word History

Etymology

base entry 4


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