B cell


B cell

noun

Definition of B CELL

:  any of the lymphocytes that have antigen-binding antibody molecules on the surface, that comprise the antibody-secreting plasma cells when mature, and that in mammals differentiate in the bone marrow —called also B lymphocyte — compare t cell

Origin of B CELL

B probably from bursa-derived (produced by the bursa of Fabricius
First Known Use: 1962

B cell

noun    (Medical Dictionary)

Medical Definition of B CELL

: any of the lymphocytes that have antigen-binding antibody molecules on the surface, that comprise the antibody-secreting plasma cells when mature, and that in mammals differentiate in the bone marrow—called also B lymphocyte; compare t cell

B cell

noun    (Concise Encyclopedia)

One of the two types of lymphocytes (the others being T cells). All lymphocytes begin their development in the bone marrow. B cells are involved in so-called humoral immunity; on encountering a foreign substance (antigen), the B lymphocyte differentiates into a plasma cell, which secretes immunoglobulin (see antibody).

Browse

Next Word in the Dictionary: bcf
Previous Word in the Dictionary: BCE
All Words Near: B cell

Seen & Heard

What made you want to look up B cell? Please tell us where you read or heard it (including the quote, if possible).