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bismuth 音標拼音: [b'ɪzməθ] n. 鉍 鉍 bismuth鉍 bismuth n 1: a heavy brittle diamagnetic trivalent metallic element ( resembles arsenic and antimony chemically); usually recovered as a by- product from ores of other metals [ synonym: { bismuth}, { Bi}, { atomic number 83}] Bismuth \ Bis" muth\, n. [ Ger. bismuth, wismuth: cf. F. bismuth.] ( Chem.) One of the elements; a metal of a reddish white color, crystallizing in rhombohedrons. It is somewhat harder than lead, and rather brittle; masses show broad cleavage surfaces when broken across. It melts at 507[ deg] Fahr., being easily fused in the flame of a candle. It is found in a native state, and as a constituent of some minerals. Specific gravity 9. 8. Atomic weight 207. 5. Symbol Bi. [ 1913 Webster] Note: Chemically, bismuth ( with arsenic and antimony is intermediate between the metals and nonmetals; it is used in thermo- electric piles, and as an alloy with lead and tin in the fusible alloy or metal. Bismuth is the most diamagnetic substance known. [ 1913 Webster] { Bismuth glance}, bismuth sulphide; bismuthinite. { Bismuth ocher}, a native bismuth oxide; bismite. [ 1913 Webster]
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