thyroxine-binding globulin

noun

Medical Definition of thyroxine-binding globulin

: a blood serum glycoprotein that is synthesized in the liver and that binds tightly to thyroxine and less firmly to triiodothyronine preventing their removal from the blood by the kidneys and releasing them as needed at sites of activity abbreviation TBG

called also thyroid-binding globulin

Learn More about thyroxine-binding globulin

Cite this Entry

“Thyroxine-binding globulin.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/thyroxine-binding%20globulin. Accessed 9 Aug. 2020.

Comments on thyroxine-binding globulin

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

WORD OF THE DAY

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt painting a young scholar and his tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

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

TAKE THE QUIZ
Love words? Need even more definitions?

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