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HEAVY METAL
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
Loud and harsh sounding rock music with a strong beat; lyrics usually involve violent or fantastic imagery
Synonyms:
heavy metal; heavy metal music
Classified under:
Nouns denoting communicative processes and contents
Hypernyms ("heavy metal" is a kind of...):
rock; rock'n'roll; rock-and-roll; rock 'n' roll; rock and roll; rock music (a genre of popular music originating in the 1950s; a blend of black rhythm-and-blues with white country-and-western)
Sense 2
Meaning:
A metal of relatively high density (specific gravity greater than about 5) or of high relative atomic weight (especially one that is poisonous like mercury or lead)
Classified under:
Hypernyms ("heavy metal" is a kind of...):
alloy; metal (a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten)
metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)
Context examples:
In alkaline solution, this agent exhibits strong chelating activities towards anions, i.e. calcium, iron, aluminium, copper, and other heavy metals.
(Gluconic Acid, NCI Thesaurus)
Edetate, a heavy metal antagonist, chelates divalent and trivalent metals, forming soluble stable complexes which are readily excreted by the kidneys, thereby can be used to lower serum calcium concentrations.
(Edetate Disodium, NCI Thesaurus)
A metal chelating agent that is used as an antidote in arsenic, gold, lead, mercury and other heavy metal poisoning.
(Dimercaprol, NCI Thesaurus)
However, the system would struggle with dangerous chemical pollution, like heavy metals and the more resistant waterborne pathogens such as cholera and salmonella
(Soil-based filter bricks clean up water for Moroccan farmers, SciDev.Net)
Contracted name for a salt of ethylenediaminetetraacetate, an agent used as a chelator of lead and some other heavy metals.
(Edetate Calcium Disodium, NCI Thesaurus)
Edetic acid binds calcium and heavy metal ions, forming soluble stable complexes which are readily excreted by the kidneys.
(Edetic acid, NCI Thesaurus)
However, there is increasing evidence to suggest that heavy metals may have other adverse effects on health – including cardiovascular disease such as heart disease and stroke – even at lower levels of exposure, which might be prevalent in many parts of the world.
(Experts warn of cardiovascular risk from heavy metal pollution, University of Cambridge)
It binds heavy metals.
(Metallothionein 3, NCI Thesaurus)
While, previously, practically all the sludge was dumped, the new regulations are stricter, requiring the waste to be sterilised and stabilised, since its incorrect handling can lead to public health problems due to microbial contamination and heavy metals.
(Scientists validate a new technology that transforms sewage sludge into fertilizer more efficiently, University of Granada)
The heavy metals are escaping partly because the planet is so big and puffy that its gravity is relatively weak.
(Hubble Uncovers a ‘Heavy Metal’ Exoplanet Shaped Like a Football, NASA)
