B (disambiguation)

Look up B in Wiktionary, the free dictionary.

B is the second letter of the alphabet.

B may also refer to:

[edit] Science and technology

• B battery, a battery used to provide the plate voltage of a vacuum tube
• Haplogroup B (mtDNA), a human mitochondrial DNA (mtDNA) haplogroup
• Haplogroup B (Y-DNA), a Y-chromosomal DNA (Y-DNA) haplogroup
• B, Blood type
• Boron, a chemical element
• B, B+ and B-, expressions of buoyancy in convective available potential energy
• Bulb (photography), a shutter-speed setting

[edit] Astronomy

• B, abbreviation for astronomical objects in the Barnard list of dark nebulae
• b represents latitude in the Galactic coordinate system

[edit] Symbols for physical and chemical quantities and units

• the Burgess vector (b)
• one of the fundamental translation vectors (b)
• one of the reciprocal lattice vectors (b*)
• breadth (b)
• impact parameter (b)
• mobility ratio (b)
• molality (b)
• one of the unit cell lengths (b)
• one of the van der Waals coefficients (b)
• barn (b), a unit of area
• bohr (b), a unit of length
• magnetic flux density (B)
• magnetic induction (B)
• Debye–Waller factor (B)
• Einstein transition probability (B)
• napierian absorbance (B)
• retarded van der Waals constant (B)
• rotational constant (B)
• second virial coefficient (B)
• susceptance (B)
• bel (B), a unit of power level

[edit] Music, education and religion

• B (musical note)
• B, grade (education) for evaluation of students' work
• Codex Vaticanus, an ancient bible
• ♭ Flat (music), a note lower in pitch by a semitone

[edit] Computing and internet

• B (programming language)
• B-Method, for computer software development
• b, bit
• B, byte

[edit] Publishing

• b (newspaper), a free daily, tabloid sized newspaper, published by the The Baltimore Sun

[edit] Sport

• B, Blood type
• Backline, in Australian Rules football

[edit] See also

• Decibel, one tenth of a bel (B)
• Brian Bolton
• /b/

This disambiguation page lists articles associated with the same Latin letter. If an internal link led you here, you may wish to change the link to point directly to the intended article.