1. (noun)bacillus, B aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil
2. (noun)B-complex vitamin, B complex, vitamin B complex, vitamin B, B vitamin, B originally thought to be a single vitamin but now separated into several B vitamins
3. (noun)boron, B, atomic number 5 a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
4. (noun)Bel, B a logarithmic unit of sound intensity equal to 10 decibels
5. (noun)barn, b (physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter
6. (noun)B, b the 2nd letter of the Roman alphabet
7. (noun)B, type B, group B the blood group whose red cells carry the B antigen
Definition of 'B'
