generally in most branches of technology bi- in composition denotes two, twice, or doubly
into the composition of substance brands bi- denotes two atoms, components, or equivalents of the constituent on title of which its prefixed, to one associated with various other element, or that such constituent exists in double the ordinary proportion. Be- and di- tend to be used interchangeably.
a standard Middle English form of the preposition by.
The chemical image of bismuth.
A Middle English and Anglo-Saxon type of be- or be-.
A prefix of Latin origin, cognate with di- and twi-, meaning two, two-, twice, dual, twofold, as with biaxial, bicornous, bimanous, biped, bifurcate, etc.: especially in chemical terms, where it denotes two parts or equivalents of ingredient labeled, such as bicarbonate, bichromate, etc.