B : | |||||||||||||
the 2nd letter of the Roman alphabet the blood group whose red cells carry the B antigen (physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter a logarithmic unit of sound intensity equal to 10 decibels a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil originally thought to be a single vitamin but now separated into several B vitamins |
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