Anatomy. an antibody-secreting cell, derived from B cells, that plays a major role in antibody-mediated immunity.
plasmacyte plas·ma·cyte or plas·mo·cyte (plāz’mə-sīt’)
See plasma cell.
plasma cell n.
An antibody-producing lymphocyte derived from a B cell upon reaction with a specific antigen. Also called plasmacyte.
A lymphocyte that originates from a B cell and produces antibodies as part of a humoral immune response. See Note at antibody.
plasmacytoma plas·ma·cy·to·ma (plāz’mə-sī-tō’mə) n. plas·ma·cy·to·mas or plas·ma·cy·to·ma·ta (-mə-tə) A discrete, usually solitary mass of neoplastic plasma cells in bone or in one of various extramedullary sites.
plasmacytosis plas·ma·cy·to·sis (plāz’mə-sī-tō’sĭs) n.
- Plasma display
noun See plasma screen
- Plasma engine
noun 1. an engine that generates thrust by reaction to the emission of a jet of plasma