acardiac

adjective
acar·​di·​ac | \ (ˈ)ā-ˈkär-dē-ˌak How to pronounce acardiac (audio) \

Medical Definition of acardiac

: lacking a heart A normal (pump) twin provides circulation for itself and for an abnormally developing acardiac (perfused) twin. The acardiac twin is not connected to the placenta but, rather, directly to the umbilical cord of the pump twin. — P. Malladi et al., in Pediatric Surgery and Urology: Long Term Outcomes, 2006 also : marked by the presence of an acardiac fetus Acardiac pregnancies are extraordinarily rare; nationwide they occur in one out of every 35,000 pregnancies … — Betsy Querna, The Herald News (Passaic County, New Jersey), 11 Sept. 2007

Comments on acardiac

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

WORD OF THE DAY

formidable, illustrious, or eminent

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Dictionary Devil

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!