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arsenic
[ noun ahr-suh-nik, ahrs-nik; adjective ahr-sen-ik ]
noun
- a grayish-white element having a metallic luster, vaporizing when heated, and forming poisonous compounds. : As; : 74.92; : 33.
- a mineral, the native element, occurring in white or gray masses.
adjective
- of or containing arsenic, especially in the pentavalent state.
arsenic
noun
- a toxic metalloid element, existing in several allotropic forms, that occurs principally in realgar and orpiment and as the free element. It is used in transistors, lead-based alloys, and high-temperature brasses. Symbol: As; atomic no: 33; atomic wt: 74.92159; valency: –3, 0, +3, or +5; relative density: 5.73 (grey); melting pt: 817°C at a pressure of 3MN/m² (grey); sublimes at 613°C (grey)
- a nontechnical name for arsenic trioxide
adjective
- of or containing arsenic, esp in the pentavalent state
arsenic
/ är′sə-nĭk /
- A metalloid element most commonly occurring as a gray crystal, but also found as a yellow crystal and in other forms. Arsenic and its compounds are highly poisonous and are used to make insecticides, weed killers, and various alloys. Atomic number 33; atomic weight 74.922; valence 3, 5. Gray arsenic melts at 817°C (at 28 atm pressure), sublimes at 613°C, and has a specific gravity of 5.73.
- See Periodic Table
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Other Words From
- nonar·senic adjective
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Word History and Origins
Origin of arsenic1
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Word History and Origins
Origin of arsenic1
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Example Sentences
Arsenic can also cause cardiovascular disease, which African-Americans have greater genetic susceptibility for, she said.
Playing this season: Annie, Steel Magnolias, and Arsenic and Old Lace.
Arsenic has been used as a poisoning agent since the Middle Ages.
Arsenic, copper, lead and PCBs were found in the soil, sediment and water.
As (metallic) Arsenic:—Obtained by one of the processes already given.
Arsenic, ar′sen-ik, n. one of the chemical elements: a mineral poison: a soft, gray-coloured metal.
Arsenic and phosphoric acids interfere unless an excess of free hydrochloric or other acid is present.
Arsenic also occurs as a constituent of several comparatively rare minerals; and, as an impurity, it is very widely distributed.
Arsenic itself is volatile, and many of its compounds have the same property.
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