B
noun
1 B
Aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil.
synonym: bacillus.
Polish: zarazek
2 B
Originally thought to be a single vitamin but now separated into several B vitamins.
synonyms: B-complex vitamin, B complex, B vitamin, vitamin B, vitamin B complex.
3 B
A trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder.
synonyms: atomic number 5, boron.
Dutch: boor, borium
Polish: B, bor
4 B
5 b
physics A unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter.
synonym: barn.
Polish: barn
6 B
The 2nd letter of the Roman alphabet.
7 B
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