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bi    : [b'ɑɪ]
Deuto- \Deu"to-\or Deut- \Deut-\ (d[=u]t-)[Contr. from Gr.
dey`teros second.] (Chem.)
A prefix which formerly properly indicated the second in a
regular series of compound in the series, and not to its
composition, but which is now generally employed in the same
sense as {bi-} or {di-}, although little used.
[1913 Webster]

Bi- \Bi-\ [L. bis twice, which in composition drops the -s, akin
to E. two. See {Bis-}, {Two}, and cf. {Di-}, {Dis-}.]
[1913 Webster]
1. In most branches of science bi- in composition denotes
two, twice, or doubly; as, bidentate, two-toothed;
biternate, doubly ternate, etc.
[1913 Webster]

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.
[1913 Webster]

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English Dictionary  2005-2009

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