b[Finnois]

nom
1 : the blood group whose red cells carry the B antigen
2 : a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
3 : a logarithmic unit of sound intensity equal to 10 decibels
4 : (physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter
Definitions