arsenic
US /ˈɑːr.sən.ɪk/
UK /ˈɑːr.sən.ɪk/

1.
arsénico
the chemical element of atomic number 33, a brittle, metallic-grey, highly poisonous metalloid.
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Arsenic is a highly toxic element.
El arsénico es un elemento altamente tóxico.
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Traces of arsenic were found in the old well water.
Se encontraron rastros de arsénico en el agua del pozo antiguo.
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