| Bi- (bi-) |
|---|
| ((?)). [L. bis twice, which in composition drops the
-s, akin to E. two. See Bis-, Two, and cf. Di-,
Dis-.]
) |
|---|
| Bi- |
|
In most branches of science bi- in
composition denotes two, twice, or doubly; as, bidentate, two-
toothed; biternate, doubly ternate, etc.
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.
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In celebration of Noah Webster's Birthday (October 16, 2009), we have prepared an updated website. 