Medical Definition of ST segment
: the part of an electrocardiogram between the QRS complex and the T wave
… he had no chest pain, lacked a high coronary risk profile, and had normal ST segments on maximal effort.— John Davis Cantwell, Physician and Sportsmedicine
Test Your Vocabulary
Words Named After People
-
- Namesake of the leotard, Jules Léotard had what profession?

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share ST segment