dinner pad

[dĭnər]
n.
  1. A pad placed over the pit of the stomach before the application of a plaster jacket, and removed after the plaster has hardened, in order to leave space for varying conditions of abdominal distention.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.