Prefix
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.
Source: Webster's dictionaryAttempting this with bi- or tri-phasic pill formulations carries an increased risk of breakthrough bleeding and may be undesirable. Source: Internet
On completion of encystation, predominantly tetra-nucleate cysts are formed along with some uni-, bi- and tri-nucleate cysts. citation Differentiation and cell biology Uni-nucleated trophozoites convert into cysts in a process called encystation. Source: Internet
In addition to work which is coordinated at the FoEI level, national member groups are free to carry out their own campaigns and to work bi- or multi-laterally as they see fit, as long as this does not go against agreed policy at the international level. Source: Internet
Kilkass is a very popular winter dish in Lebanon and is prepared in two ways: "kilkass with lentils" is a stew flavored with crushed garlic and lemon juice and "'il'as (قلقاس) bi- tahini ". Source: Internet
They can therefore be called simple phenols or monophenols, with only one phenolic group, or di- (bi-), tri- and oligophenols, with two, three or several phenolic groups respectively. Source: Internet
In bi- and polymetallic complexes, in which the individual centres have an odd number of electrons or that are high-spin, the situation is more complicated. Source: Internet