1. The act of circumcising.
2. A religious ceremony in which someone is circumcised.
3. Circumcision
   1. A Christian feast celebrating the circumcision of Jesus. Used with the.
   2. January 1, the day on which this feast is celebrated. Used with the.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.