bismuth

bismuth

[biz-muhth]
noun Chemistry.
a brittle, grayish-white, red-tinged, metallic element used in the manufacture of fusible alloys and in medicine. Symbol: Bi; atomic weight: 208.980; atomic number: 83.

Origin:
1660–70; earlier bismutum < Neo-Latin bisemūtum, Latinized form of German Wissmuth (now Wismut) < ?

bismuthal, adjective
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World English Dictionary
bismuth (ˈbɪzməθ)
 
n
a brittle pinkish-white crystalline metallic element having low thermal and electrical conductivity, which expands on cooling. It is widely used in alloys, esp low-melting alloys in fire safety devices; its compounds are used in medicines. Symbol: Bi; atomic no: 83; atomic wt: 208.98037; valency: 3 or 5; relative density: 9.747; melting pt: 271.4°C; boiling pt: 1564±5°C
 
[C17: from New Latin bisemūtum, from German Wismut, of unknown origin]
 
bismuthal
 
adj

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Etymonline
Word Origin & History

bismuth
1660s, from obsolete Ger. Bismuth, Wismut, Wissmuth (early 17c.), of unknown origin; perhaps related to O.H.G. hwiz "white."
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

bismuth bis·muth (bĭz'məth)
n.
Symbol Bi
A highly diamagnetic metallic element used in various low-melting alloys in castings, solders, and fire-safety devices. Atomic number 83; atomic weight 208.980; melting point 271.4°C; boiling point 1,560°C; specific gravity 9.747; valence 3, 5.

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Science Dictionary
bismuth   (bĭz'məth)  Pronunciation Key 
Symbol Bi
A brittle, pinkish-white, crystalline metallic element that occurs in nature as a free metal and in various ores. Bismuth is the most strongly diamagnetic element and has the highest atomic number of all stable elements. It is used to make low-melting alloys for fire-safety devices. Atomic number 83; atomic weight 208.98; melting point 271.3°C; boiling point 1,560°C; specific gravity 9.747; valence 3, 5. See Periodic Table.
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