plasma cell

noun

1. Anatomy.,  an antibody-secreting cell, derived from B cells, that plays a major role in antibody-mediated immunity.

plasma cell

1. A lymphocyte that originates from a B cell and produces antibodies as part of a humoral immune response.

2. See Note at antibody

Word History and Origins

Origin of plasma cell¹

First recorded in 1885–90

Example Sentences

Researchers also found tumor-specific IgG antibodies and persistent plasma cells in the bone marrow, clear signs of a durable, body-wide immune defense capable of preventing the cancer from returning.

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Myeloma – also known as multiple myeloma – affects part of the immune system called plasma cells.

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The musician said she has multiple myeloma, which occurs when cancerous plasma cells build up in bone marrow and crowd out healthy blood cells, according to the Mayo Clinic.

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Unlike CD20, it’s also on the surface of young plasma cells, which means the drug tags for destruction an additional source of autoantibodies.

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His company is developing a system that uses solar-powered plasma cells to fix nitrogen from the air.

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