Shoulder arthroplasty (AHR-thro-plaste) is surgery to replace the shoulder joint. The shoulder joint is where the head (ball) of the humerus meets the glenoid (socket-like end) of the scapula. The humerus is the bone of the upper arm, and the scapula is the shoulder blade.
Definition of swidden - an area of land cleared for cultivation by slashing and burning vegetation Definition of swidden - an area of land cleared for cultivation by slashing and burning vegetation dictionary
Swidden in practice. The Wanniyala Aetto of Sri Lanka are a forest people who have traditionally practiced a form of agriculture called chena cultivation. The forest plots are cleared for one or two years and then left to rest for seven or eight.