levothyroxine

noun

le·​vo·​thy·​rox·​ine
variants or British laevothyroxine
ˌlē-vō-thī-ˈräk-ˌsēn, -sən How to pronounce levothyroxine (audio)
: the levorotatory isomer of thyroxine that is administered in the form of its sodium salt C15H10I4NNaO4 in the treatment of hypothyroidism see levothroid, levoxyl, synthroid

Dictionary Entries Near levothyroxine

Levothroid

levothyroxine

Levoxyl

See More Nearby Entries 

Cite this Entry

“Levothyroxine.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/levothyroxine. Accessed 20 Mar. 2023.

Copy Citation

Share

Love words? Need even more definitions?

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

Word of the Day

Listen to the pronunciation of kith

See Definitions and Examples »

Test Your Vocabulary

Which Came First?

  • baby chick with a brown egg
  • hot take or cold shoulder?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY
Words at Play
Ask the Editors
Word Games