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3 definitions found

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

 bi- 複合詞
 二,兩,雙

From: Webster's Revised Unabridged Dictionary (1913)

 Bi-
 1. In most branches of science bi- in composition denotes two, twice, or doubly; as, bidentate, two-toothed; biternate, doubly ternate, etc.
 2. Chem. In the composition of chemical names bi- denotes two atoms, parts, or equivalents of that constituent to the name of which it is prefixed, to one of the other component, or that such constituent is present in double the ordinary proportion; as, bichromate, bisulphide. Be- and di- are often used interchangeably.
 

From: WordNet (r) 2.0

 Bi
      n : a heavy brittle diamagnetic trivalent metallic element
          (resembles arsenic and antimony chemically); usually
          recovered as a by-product from ores of other metals [syn:
           bismuth, atomic number 83]