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Medical Definition of Panniculus
1. A sheet or layer of tissue. Origin: L. Dim. Of pannus, cloth Panniculus adiposus, the superficial fascia which contains an abundance of fat deposit in its areolar substance. Panniculus carnosus, the skeletal muscle layer in the superficial fascia represented in humans by the platysma muscle; it is much more extensive in lower mammals. (05 Mar 2000)