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base metal

base metal

1 4.0
A common metal like iron or copper that is not as valuable as gold
  • noun
  • /beɪs ˈmɛtəl/
  • Specialized
translation icon : metal base
  • For centuries alchemists tried to make gold from base metals.
  • base metal prices
  • transmute base metals
  • made of base metal

So all those base metals started changing into gold slowly but surely.

Examples

  • Alchemy, or the turning of a base metal into gold, is a dream of man for thousands of years.

    Blog text (14)
  • Now, a long time ago, people called "alchemists" believed that you could change base metals to precious metals.

  • Some metals are common, like copper, and are called base metals.

  • TGR: China has its own precious and base metal resources, and it has growing demand.

    Blog text (33)
  • After the fall of Rome, their coinage went from gold to silver to copper to base metals.

    Blog text (25)
  • China's domestic demand for goods is making itself felt in world commodity prices (especially base metals), a good indicator of economic weight.

    Academic text (2004)
  • Keen as the companies are to seal the deal, selling off assets could come at a time when zinc is one of the few bright spots among the base metals.

    Blog text (5)
  • For example, the exploitation of the huge base metal deposits in Peru, Chile, Zaire, Mexico, and Papua New Guinea.

    Academic text (1990)
  • Americans used silver half-dollars, quarters, and dimes until 1965 because they, too, did not have any alternative; in 1965, the rise in the price of silver forced that coinage out of circulation, and coins of base metal took their place.

    Blog text (19)
  • Some metals are common, like base metals, such as iron and copper.

Antonyms

A rare metal like gold or silver that has high value

How Precious

base metal
  • Specialized
1 4.0

Surface Forms

base metal singular
base metals plural

Morphology

base + metal

The meaning 'a metal that is common and not considered precious' is directly and compositionally derived from 'base' (non-precious, low in value) + 'metal' (a metallic element). Although 'base' has a slightly technical sense in metallurgy ('not a noble metal'), the everyday sense of 'not valuable/precious' is enough for a B1 learner to infer the intended meaning. This compound follows normal English noun + adjective composition and has clear parallels in other languages, making it immediately comprehensible to learners who know both words.

Etymology

Base metal comes from the image of a base that sits under a thin layer of gold or silver and a metal that is ordinary and common. So base metal means a common, 'not precious' metal like iron, copper, or zinc.