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
is a form of swidden agriculture that is practiced in Mesoamerica. Traditionally, a milpa plot (from the Nahuatl word for corn field) is planted with maize, beans, and squash (known as the Three Sisters) and might include a variety of other plants.