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