• star type whose members have a surface temperature of 10 000 – 30 000°. Examples include the bright stars Rigel and Spica. The hottest of stars apart from the 0 stars, the B type have neutral helium rather than the B stars’ ionised helium in their spectra.
  • symbol for magnetic flux density
  • symbol for susceptance
  • symbol for base
  • symbol for bel
  • symbol for barn
    (written as b)
  • chemical symbol for boron
  • symbol for baud
    (written as b)
  • symbol for bar
    (written as b)
  • symbol for battery
  • The imaginary number component of admittance. Expressed in siemens. Its symbol is B.

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