A poisonous chemical used to kill weeds and pests. Also used in cancer therapy.

late 14c., from Old French arsenic, from Latin arsenicum, from late Greek arsenikon "arsenic" (Dioscorides; Aristotle has it as sandarake), adapted from Syriac (al) zarniqa "arsenic,&qu [..]

chemical element with the symbol As.

Element number 33 in the Periodic Table of the Chemical Elements

A naturally occurring element that is highly toxic to most organisms.

The knowledge of arsenic dates back to ancient Greece, but it wasn’t until the Middle Ages that its poisonous characteristics were described. Metallic arsenic was first produced in the 17th century by heating arsenic with potash and soap. The silver-gray semi-metal is rarely found in nature in its elemental form and is basically recovered [..]

(n) a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer(n) a very poisonous metallic element that has three allotropic forms; ar [..]

Symbol:"As" Atomic Number:"33" Atomic Mass: 74.92amu. Classified as a semi-metallic element, Arsenic is probably best known as a poison. While highly toxic, this gr [..]

A gray, brittle and highly poisonous metal.  It is used as an alloy for metals, especially lead and copper, and is used in insecticides and weed killers.  In its inorganic form, it is listed as a cancer-causing chemical under Proposition 65.

A naturally occurring element found in the earth's crust and in rocks and soil, water, air, and plants and animals. There are trace amounts of it in all living matter.

The MCL for arsenic is 0.01 mg/L. Arsenic is highly toxic and its prevalence is due to the natural occurrence of this metal and past use of arsenic in pesticides. Arsenic poisoning typically makes people feel tired and depressed and this poisoning is also associated with weight loss, nausea, hair loss, and marked by white lines across your toenails [..]

A shiny gray element with atomic symbol As, atomic number 33, and atomic weight 75. It occurs throughout the universe, mostly in the form of metallic arsenides. Most Forms are toxic. According to the [..]

A shiny gray element with atomic symbol As, atomic number 33, and atomic weight 75. It occurs throughout the universe, mostly in the form of metallic arsenides. Most forms are toxic. According to the [..]

A poisonous chemical used to kill weeds and pests. Also used in cancer therapy.

A poisonous element that commonly occurs in the natural environment and can contaminate groundwater. Drinking arsenic-rich water over months and years causes arsenic to accumulate in the body. This ca [..]

 A poisonous chemical used to kill weeds and pests. Also used in cancer therapy.

Arsenic is an element that occurs naturally in deposits in the earth. It has a variety of uses in industry and agriculture. Thousands of pounds are released each year into the environment. Arsenic rem [..]

This is a poison which shows up mainly in water supplies drawn from wells. It has been linked to several cancers and has been found to harm nerves, heart, blood vessels, and skin.

A odorless and tasteless chemical element commonly used to strengthen alloys of copper and especially lead. Arsenic poisoning can occur when arsenic is consumed in high concentrations in drinking wate [..]

A highly poisonous metallic element having three allotropic forms, yellow, black, and gray, of which the brittle, crystalline gray is the most common. Arsenic and its compounds are used in insecticide [..]

Metal associated with certain types of gold deposit, chemical symbol As.

A gray, brittle and highly poisonous metal. It is used as an alloy for metals, especially lead and copper, and is used in insecticides and weed killers. In its inorganic form, it is listed as a cancer [..]