Definition of antimony in English:



  • [mass noun] The chemical element of atomic number 51, a brittle silvery-white semimetal.

    • ‘Scholars had a great deal of trouble distinguishing arsenic, antimony, and bismuth from each other.’
    • ‘Alloying with other metals, notably calcium or antimony, is a common method of strengthening lead for many applications.’
    • ‘There are seven metalloids: boron, silicon, germanium, arsenic, selenium, antimony, and tellurium.’
    • ‘Within these belts, gold mineralization is associated with rare metals, base metals, uranium, antimony, and mercury.’
    • ‘The acid draws other heavy metals- including arsenic, antimony, lead, and mercury- out of the ore heaps and into the environment.’
    • ‘State records indicate there is considerable groundwater degradation at the site, and that high levels of arsenic and antimony have been recorded.’
    • ‘Beryllium, calcium, silver and antimony have no appreciable effect on mechanical properties.’
    • ‘Anti is not a prefix here; antimony is a metallic chemical element that has nothing to do with being against or opposed to something.’
    • ‘We quickly learned that those cases were from their new non-toxic primers, which contained no lead or other heavy metals such as barium and antimony.’
    • ‘Their symptoms, masked as food poisoning, were - according to the doctors' evidence - identical with poisoning by antimony (to weaken the system), then strychnine (to kill the patient off).’
    • ‘The most important of these are antimony, phosphorus, tin, and arsenic, with manganese and silicon having a small effect.’
    • ‘The crystal is a combination of antimony and cobalt known as a skutterudite.’
    • ‘Mrs. Moffat's powder, a mixture that included antimony and potassium tartrate, was advertised as being in use for 60 years and highly effective.’
    • ‘Austria produces some petroleum and natural gas to meet its own needs, and it also mines coal, iron ore, copper, lead, zinc, antimony, and graphite, used in industry.’
    • ‘Small amounts of various metals, notably antimony and silver, are added to tin-lead solders to increase their strength.’
    • ‘Cartridges found at the Post Office contained residues of aluminium, lead, barium and antimony or three or two of these elements.’
    • ‘Doping with elements such as fluorine or antimony enhances its electrical conductivity and in turn its infrared reflectance.’
    • ‘Conditions in other factories were as bad, with antimony and lead poisoning common.’
    • ‘Beneath the surface lie layers rich in arsenic, phosphorus, copper, lead, antimony, even gold.’
    • ‘High levels of barium and antimony on a person's hands is a strong indication that they have fired a weapon or have been close to a discharged weapon.’


Late Middle English (denoting stibnite, the most common ore of the metal): from medieval Latin antimonium, of unknown origin. The current sense dates from the early 19th century.