T-helper cell

T-help·​er cell | \ ˈtē-ˈhel-pər- How to pronounce T-helper cell (audio) \
variants: or T helper cell
plural T-helper cells or T helper cells

Definition of T-helper cell

: helper t cell Under normal conditions, T-helper cells signal to other immune-system cells and stimulate them to do battle with foreign organisms.— Morton Hunt Other sets of T cells include T helper cells, which are necessary for B lymphocytes to become antibody-producing plasma cells, and T suppressor cells, which mute the antibody response.— Linda D. Caren

First Known Use of T-helper cell

1980, in the meaning defined above

Keep scrolling for more

Learn More About T-helper cell

Time Traveler for T-helper cell

Time Traveler

The first known use of T-helper cell was in 1980

See more words from the same year

Dictionary Entries Near T-helper cell

the lowdown

T-helper cell


See More Nearby Entries 

Statistics for T-helper cell

Cite this Entry

“T-helper cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/T-helper%20cell. Accessed 22 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon
Seen & Heard
People are talking about

Keep scrolling for more

More Definitions for T-helper cell

T-helper cell

T-help·​er cell | \ (ˈ)tē-ˈhel-pər- How to pronounce T-helper cell (audio) \
variants: or T helper cell

Medical Definition of T-helper cell

: helper t cell … the virus appears extraordinarily well-adapted to human blood lymphocytes; specifically to a subpopulation of these cells called T-helper cells, which serve as orchestrators of the immune system.— Johnathan E. Kaplan T helper cells are the sergeants that roust T or B cells into action.— Elizabeth Pennisi


Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!