memory cell

noun Immunology.
any small, long-lived lymphocyte that has previously encountered a given antigen and that on reexposure to the same antigen rapidly initiates the immune response (memory T cell) or proliferates and produces large amounts of specific antibody (memory B cell) the agent of lasting immunity.
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Cultural Dictionary

memory cell definition


A cell in the immune system that, when exposed to an invading pathogen, replicates itself and remains in the lymph nodes searching for the same antigen, resulting in a more efficient and rapid response to any subsequent attack.

Note: The creation of memory cells is one of the main goals of vaccination.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
Universe does not know time or past except our brain memory cell snaps.
First, it would have to store more than one bit of information per memory cell.
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