antimony

plural antimonies

1. countableuncountableA chemical element (symbol Sb, from Latin stibium) with an atomic number of 51: in its stable allotrope, a lustrous gray and very brittle metal.

   Deep in the Salmon River Mountains, an Idaho mining company, Perpetua Resources, is proposing a vast open-pit gold mine that would also produce 115 million pounds of antimony — an element that may be critical to manufacturing the high-capacity liquid-metal batteries of the future.

   2021 December 27, Jack Healy, Mike Baker, “As Miners Chase Clean-Energy Minerals, Tribes Fear a Repeat of the Past”, in The New York Times, →ISSN

   Synonyms: stibium

2. countableuncountableThe alloy stibnite.

   In quality synergistic additives in a composition use oxide antimonies.

   2005, Al Berlin, Chemical Physics of Pyrolysis, Combustion, and Oxidation, →ISBN, page 21

   Synonyms: stibium