long QT syndrome

noun

Medical Definition of long QT syndrome

: any of several inherited cardiac arrhythmias that are characterized by abnormal duration and shape of the QT interval and that place the subject at risk for torsades de pointes abbreviation LQTS

Learn More about long QT syndrome

Cite this Entry

“Long QT syndrome.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/long%20QT%20syndrome. Accessed 29 Oct. 2020.

Comments on long QT syndrome

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

WORD OF THE DAY

Test Your Vocabulary

Here Be Dragons: A Creature Identification Quiz

  • monster werewolf photo
  • Which is a synonym of werewolf?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

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!