n.
1.the blood group whose red cells carry the B antigen
2.aerobic rod-shaped spore-producing bacterium
3.originally thought to be a single vitamin but now separated into several B vitamins
4.a trivalent metalloid element
5.a logarithmic unit of sound intensity equal to 10 decibels
6.(physics) a unit of nuclear cross section
7.the 2nd letter of the Roman alphabet
Idiom of the Day
blue in the face
to be exhausted and speechless
You can argue with him until you are blue in the face but you will never change his mind.