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

Medical Dictionary

P wave

play
noun \ˈpē-ˌwāv\

Medical Definition of P wave

  1. :  a deflection in an electrocardiographic tracing that represents atrial activity of the heart—compare qrs complex, t wave




Seen and Heard

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

WORD OF THE DAY

not forbidden by law

Get Word of the Day daily email!