arsenic : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: arsenic	by the DICT Development Group
4 results for arsenic
From WordNet (r) 3.0 (2006) [wn]:
arsenic n a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer Synonym(s): arsenic, arsenic trioxide, arsenous anhydride, arsenous oxide, white arsenic, ratsbane 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 Synonym(s): arsenic, As, atomic number 33
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Arsenic \Ar"senic\ ([aum]r"s[esl]n[icr]k; 277), n. [L. arsenicum, Gr. 'arseniko`n, 'arreniko`n, yellow orpiment, perh. fr. 'arseniko`s or better Attic 'arreniko`s masculine, 'a`rrhn male, on account of its strength, or fr. Per. zern[c6]kh: cf. F. arsenic.] 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[deg] 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 Webster's Revised Unabridged Dictionary (1913) [web1913]:
Arsenic \Arsen"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 The Elements (22Oct97) [elements]:
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.