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

myocardium

play
noun myo·car·di·um \ˌmī-ə-ˈkär-dē-əm\

Definition of myocardium

  1. :  the middle muscular layer of the heart wall

myocardial play \-dē-əl\ adjective


Origin of myocardium

New Latin, from my- + Greek kardia heart — more at heart


First Known Use: 1879


Medical Dictionary

myocardium

play
noun myo·car·di·um \ˌmī-ə-ˈkärd-ē-əm\

Medical Definition of myocardium

plural myocardia \-ē-ə\play

  1. :  the middle muscular layer of the heart wall




Learn More about myocardium


Seen and Heard

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

WORD OF THE DAY

tending to dismiss important matters

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alt-5746713d76276

Which of these is a synonym of nonplus?

disapprove soothe reduce perplex
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