[ uh-bawrt ]
/ əˈbɔrt /

verb (used without object)

verb (used with object)


a missile, rocket, etc., that has aborted.

Origin of abort

1570–80; < Latin abortus miscarried (past participle of aborīrī to disappear, miscarry) equivalent to ab- ab- + -or- come into being + -tus past participle suffix

Related forms

un·a·bort·ed, adjective

Can be confused

aboard abort abroad
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for abort

British Dictionary definitions for abort


/ (əˈbɔːt) /



the premature termination or failure of (a space flight, military operation, etc)

Word Origin for abort

C16: from Latin abortāre, from the past participle of aborīrī to miscarry, from ab- wrongly, badly + orīrī to appear, arise, be born
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for abort


[ ə-bôrt ]


To expel or cause to expel an embryo or fetus before it is viable.
To arrest a disease in its earliest stages.
To arrest in growth or development; to cause to remain rudimentary.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.