| NOUN | body | plasmacyte, plasma cell | a cell that develops from a B lymphocyte in reaction to a specific antigen |
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| Meaning | A cell that develops from a B lymphocyte in reaction to a specific antigen; found in bone marrow and sometimes in the blood. | |
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| Synonym | plasma cell | |
| Narrower | plasmablast | The precursor of a plasma cell |
| Broader | lymphocyte, lymph cell | An agranulocytic leukocyte that normally makes up a quarter of the white blood cell count but increases in the presence of infection |