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definitions

arthrocele

[är′thrə-sēl′]
n.
  1. Hernia of the synovial membrane through the capsule of a joint.
  2. Swelling of a joint.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.