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See also: Mercury


Chemical element
Hg Previous: gold (Au)
Next: thallium (Tl)


From Mercury.


  • (UK) IPA(key): /ˈməː.kjʊ.ɹi/
  • (US) enPR: mûr'kūrē, IPA(key): /ˈmɝkjəɹi/
  • (file)


English Wikipedia has an article on:

mercury (countable and uncountable, plural mercuries)

  1. A metal.
    1. A silvery-colored, toxic, metallic chemical element, liquid at room temperature, with atomic number 80 and symbol Hg. [from 14th c.]
    2. (sciences, historical) One of the elemental principles formerly thought to be present in all metals. [from 15th c.]
    3. (with definite article) Ambient pressure or temperature (from the use of mercury in barometers and thermometers). [from 17th c.]
      The mercury there has averaged 37.6C, 2.3C above the February norm.
    4. (obsolete) Liveliness, volatility. [17th-18th c.]
      • (Can we date this quote?) Bishop Burnet
        He was so full of mercury that he could not fix long in any friendship, or to any design.
  2. A plant.
    1. An annual plant, annual mercury (Mercurialis annua), formerly grown for its medicinal properties; French mercury, herb mercury. [from 14th c.]
      • 1653, Nicholas Culpeper, The English Physician Enlarged, Folio Society 2007, p. 188:
        Towards the tops of the stalks and branches come forth at every joint in the male Mercury two small round green heads, standing together upon a short footstalk, which growing ripe are the seeds, not having any flower.
    2. A similar edible plant, Chenopodium bonus-henricus, otherwise known as English mercury or allgood. [from 15th c.]
    3. (US, regional) The poison oak or poison ivy. [from 18th c.]


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Further reading[edit]

  • Mercury” in David Barthelmy, Webmineral Mineralogy Database[1], 1997–.
  • mercury”, in[2], Hudson Institute of Mineralogy, accessed 29 August 2016.

Middle English[edit]



  1. Alternative form of mercurie