Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia.
Related to B cells: T cells, memory B cells
Abbreviation for beta.
1. Second letter of the Greek alphabet.
2. chemistry Denotes the second in a series, the second carbon from a functional (e.g., carboxylic) group, or the direction of a chemical bond toward the viewer. For terms with the prefix β, see the specific term.