B cell

Definitions of B cell
  1. noun
    a lymphocyte derived from bone marrow that provides humoral immunity; it recognizes free antigen molecules in solution and matures into plasma cells that secrete immunoglobulin (antibodies) that inactivate the antigens
    synonyms: B lymphocyte
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    type of:
    lymph cell, lymphocyte
    an agranulocytic leukocyte that normally makes up a quarter of the white blood cell count but increases in the presence of infection
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