[ lim-fuh-sahyt ]
/ ˈlɪm fəˌsaɪt /

noun Anatomy.

a type of white blood cell having a large, spherical nucleus surrounded by a thin layer of nongranular cytoplasm.
Compare B cell, T cell.

Origin of lymphocyte

First recorded in 1885–90; lympho- + -cyte


lym·pho·cyt·ic [lim-fuh-sit-ik] /ˌlɪm fəˈsɪt ɪk/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for lymphocyte

British Dictionary definitions for lymphocyte

/ (ˈlɪmfəʊˌsaɪt) /


a type of white blood cell formed in lymphoid tissueSee also B-lymphocyte, T-lymphocyte

Derived forms of lymphocyte

lymphocytic (ˌlɪmfəʊˈsɪtɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for lymphocyte

[ lĭmfə-sīt′ ]


Any of the nearly colorless cells formed in lymphoid tissue, as in the lymph nodes, spleen, thymus, and tonsils, constituting between 22 and 28 percent of all white blood cells in the blood of a normal adult human. They function in the development of immunity and include two specific types, B cells and T cells.

Other words from lymphocyte

lym′pho•cytic (-sĭtĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for lymphocyte

[ lĭmfə-sīt′ ]

Any of various white blood cells, including B cells and T cells, that function in the body's immune system by recognizing and deactivating specific foreign substances called antigens. B cells act by stimulating the production of antibodies. T cells contain receptors on their cell surfaces that are capable of recognizing and binding to specific antigens. Lymphocytes are found in the lymph nodes and spleen and circulate continuously in the blood and lymph.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.