B

مترادف و متضاد b

1. A trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
   Synonyms: boron, B-complex vitamin, b complex, vitamin b (complex), vitamin-b, atomic number 5, b vitamin
2. noun Aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil
   Synonyms: bacillus
3. noun A blood type
   Synonyms: type b, group B
4. noun The 2nd letter of the Roman alphabet
   Synonyms: b
5. noun A logarithmic unit of sound intensity equal to 10 decibels
   Synonyms: bel
6. noun (physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter
   Synonyms: barn