helper T cell

noun Immunology.

a T cell that stimulates B cells to produce antibody against a foreign substance, using lymphokines or direct contact as a signal.

QUIZZES

QUIZ YOURSELF ON THESE WORDS FROM BROWN GIRL DREAMING!

Visualize yourself passing this quiz on words from Jacqueline Woodson’s exquisite verse novel “Brown Girl Dreaming,” and then take the quiz to prove you can do it! (Because you can.)
Question 1 of 10
What does “barren” mean?
a cylindrical wooden container with slightly bulging sides.
Worn down by dullness, tedious repetition.
unproductive; unfruitful
TAKE THE QUIZ TO FIND OUT
Also called T helper cell.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for helper T cell

helper T-cell

noun

See T-lymphocyte
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

Scientific definitions for helper T cell

helper T cell

Any of various T cells that, when stimulated by a specific antigen, release lymphokines that promote the activation and function of B cells and killer T cells.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.