Definitions for b cell
Random House Webster's College Dictionary
Ref: Also called B lymphocyte.
Ref: beta cell .
Origin of B cell:
B cell, B lymphocyte(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
A lymphocyte, developed in the bursa of birds and the bone marrow of other animals, that produces antibodies and is responsible for the immune system.
Origin: From bursa + cell.