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

T4

play
noun \ˈtē-ˈfȯr\

Definition of T4



Origin of t4

probably from thyronine, the amino acid of which thyroxine is a derivative + 4, the number of iodine atoms it contains


First Known Use: 1974


Medical Dictionary

T4

noun

Medical Definition of T4



Variants of t4

or T4 \ˈtē-ˈfō(ə)r\

Learn More about t4

  1. Medical Dictionary: Definition of "T4" Britannica.com: Encyclopedia article about "T4"


Seen and Heard

What made you want to look up T4? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a division or portion of a pool or whole

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1926873504

Which of the following best describes an easily irritated person?

superficial tetchy flashy gregarious
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