T4

noun

ˈtē-ˈfȯr How to pronounce T4 (audio)
variants or T4
: thyroxine

Word History

Etymology

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

First Known Use

1974, in the meaning defined above

Time Traveler
The first known use of T4 was in 1974

Dictionary Entries Near T4

T3

T4

T4 cell

See More Nearby Entries 

Cite this Entry

“T4.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/T4. Accessed 25 Apr. 2024.

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Medical Definition

T4

noun
variants or T4
ˈtē-ˈfō(ə)r
: thyroxine

More from Merriam-Webster on T4

Britannica.com: Encyclopedia article about T4

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