arsenic

Definition of Arsenic in English :

Noun

1. arsenic, arsenic trioxide, arsenous anhydride, arsenous oxide, ratsbane, white arsenic

a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer

2. arsenic, as, atomic number 33

a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar

WordNet Lexical Database for English. Princeton University. 2010.

Arsenic

see synonyms of arsenic

noun (ˈɑːsnɪk )

1.

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)

2. a nontechnical name for arsenic trioxide

adjective (ɑːˈsɛnɪk )

3.

of or containing arsenic, esp in the pentavalent state

Arsenic

see synonyms of arsenic

noun

1.

a silvery-white, brittle, very poisonous chemical element, compounds of which are used in making insecticides, glass, medicines, semiconductors, etc.: symbol, As; at. no., 33

see the periodic table of elements in the Reference Supplement

2. Loosely

arsenic trioxide, As2O3, a poisonous compound of arsenic used to exterminate insects and rodents: it is a white powder and has no taste

adjective

3.

of or containing arsenic, esp. pentavalent arsenic

Arsenic

see synonyms of arsenic

n.

1. Symbol As A highly poisonous metallic element having several allotropic forms of which the brittle, crystalline gray metallic form is the most common. The less stable yellow allotrope has a molecular structure, As₄. Arsenic and its compounds are used in insecticides, weed killers, semiconductor dopants, and various alloys. Atomic number 33; atomic weight 74.9216; valence 3, 5. Gray arsenic melts at 817°C (at 28 atm pressure), sublimes at 616°C, and has a specific gravity of 5.75. See Periodic Table.

2. Arsenic trioxide.

adj. ar·sen·ic (är-sĕnĭk)

Of or containing arsenic, especially with valence 5.

Arsenic

Noun

Arsenic

Arsenic

Arsenic

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