noun Biochemistry.

a hormone, produced by the thymus gland, that promotes the development of T cells from stem cells.

Nearby words

  1. thymocyte,
  2. thymokinetic,
  3. thymol,
  4. thymoma,
  5. thymoprival,
  6. thymus,
  7. thymus corpuscle,
  8. thymus gland,
  9. thymy,
  10. thyone

Origin of thymosin

First recorded in 1966; thym(us) + -in2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for thymosin




A hormone secreted by the thymus that stimulates development of T cells.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.