Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

thymosin

play
noun thy·mo·sin \ˈthī-mə-sən\

Definition of thymosin

  1. :  a mixture of polypeptides isolated from the thymus; also :  any of these



Origin of thymosin

Greek thymos thymus + English 1-in


First Known Use: 1966


Medical Dictionary

thymosin

play
noun thy·mo·sin \ˈthī-mə-sən\

Medical Definition of thymosin

  1. :  a mixture of polypeptides isolated from the thymus; also :  any of these polypeptides




Learn More about thymosin


Seen and Heard

What made you want to look up thymosin? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

tending to dismiss important matters

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alt-5746713d76276

Which of these is a synonym of nonplus?

disapprove reduce soothe perplex
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ