spontaneous abortion

noun

Medical Definition of spontaneous abortion

: naturally occurring expulsion of a nonviable fetus

Comments on spontaneous abortion

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

WORD OF THE DAY

a bell tower

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

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!