Dictionary.com
definitions

barrel chest

[băr′əl]
n.
  1. A large chest with increased anteroposterior diameter and usually some degree of kyphosis, sometimes seen in cases of emphysema.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Examples from the Web for barrel chest

Historical Examples of barrel chest

  • My underpinning is good, too; I'm not one of these fellows with spidery legs and a barrel-chest.