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heavy metal

heavy metal

11 4.8
A dense metal that is often poisonous, like lead or mercury
  • noun
  • /ˈhɛvi ˈmɛtəl/
  • Specialized
translation icon : metal pesado
  • But they do contain heavy metals such as mercury, lead and cadmium.
  • toxic heavy metals
  • heavy metal concentrations
  • removal of heavy metals

The cell's packed with heavy metals or toxins.

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Examples

  • Others, however, such as sooty carbon and heavy metals, have not been specifically addressed by the LRTAP regime.

    Academic text (1992)
  • A higher amount of heavy metals is also present in textile effluent.

    Academic text (2013)
  • For biowaste products, Norway has three different quality classes, based upon the heavy metal content.

    Academic text (1998)
  • The accumulation of dust containing heavy metals can cause severe health problems.

    Academic text (1994)
  • The approval is based upon a series of tests on nutrients, heavy metals, and pathogens.

    Academic text (1998)
  • It contains mercury, arsenic, and over a dozen heavy metals.

  • The concentrations of six heavy metals in sediments were elevated, especially in the central muddy areas.

    Academic text (1990)
  • Stabilization is used to treat a wide range of contaminants, ranging from heavy metals to pesticides.

    Academic text (1995)
  • The main pollutants causing soil contamination include heavy metals, pesticides, and toxic chemical substances (Tseng 1989).

    Academic text (1994)
  • The contaminated site was filled with heavy metals such as lead and mercury that pose significant health risks.

Surface Forms

heavy metal singular
heavy metals plural

Morphology

heavy + metal

There is a partial link between the constituents and the genre: 'heavy' can metaphorically signal intensity or loudness, and 'metal' is used as a label for a music style in many languages. However, the music sense of 'metal' and the compound meaning 'a loud, aggressive rock genre' cannot be fully predicted from the literal definitions of 'heavy' (weight) and 'metal' (element) without prior exposure, so the transparency is limited.

Etymology

Heavy metal comes from the simple idea of a heavy (very weighty) metal — think lead or mercury that feel heavy in your hand. Because many of these metals are harmful, the name now means 'a dense, often toxic metal'.