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6 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 ar·se·nic /ˈɑrsnɪk, sṇɪk/
 砷,砒霜

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 ar·se·nic /ˈɑrsnɪk, ṇɪk/ 名詞
 砷

From: Webster's Revised Unabridged Dictionary (1913)

 Ar·sen·ic, a. Chem. Pertaining to, or derived from, arsenic; -- said of those compounds of arsenic in which this element has its highest equivalence; as, arsenic acid.
 

From: Webster's Revised Unabridged Dictionary (1913)

 Ar·se·nic n.
 1. Chem. One of the elements, a solid substance resembling a metal in its physical properties, but in its chemical relations ranking with the nonmetals. It is of a steel-gray color and brilliant luster, though usually dull from tarnish. It is very brittle, and sublimes at 356° Fahrenheit. It is sometimes found native, but usually combined with silver, cobalt, nickel, iron, antimony, or sulphur. Orpiment and realgar are two of its sulphur compounds, the first of which is the true arsenicum of the ancients. The element and its compounds are active poisons. Specific gravity from 5.7 to 5.9. Atomic weight 75. Symbol As.
 2. Com. Arsenious oxide or arsenious anhydride; -- called also arsenious acid, white arsenic, and ratsbane.

From: WordNet (r) 2.0

 arsenic
      n 1: 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 [syn: As, atomic
           number 33]
      2: a white powdered poisonous trioxide of arsenic; used in
         manufacturing glass and as a pesticide and weed killer
         [syn: arsenic trioxide, arsenous anhydride, arsenous
         oxide]

From: Elements database 20001107

 arsenic
 Symbol: As
 Atomic number: 33
 Atomic weight: 74.922
 Metalloid element of group 15. There are three allotropes, yellow, black,
 and grey. Reacts with halogens, concentrated oxidizing acids and hot
 alkalis. Albertus Magnus is believed to have been the first to isolate the
 element in 1250.