Definition of vendetta. 1  1 : blood feud. 2  2 : an often prolonged series of retaliatory, vengeful, or hostile acts or exchange of such acts waged a personal vendetta against those who opposed his nomination.
A strain is a twist, pull and/or tear of a muscle and/or tendon. Tendons are fibrous cords of tissue that attach muscles to bone. Strains and sprains are among the most common sports injuries.
Shoulder tendonitis (or tendinitis) is an inflammation injury to the tendons of your shoulder's rotator cuff. Because inflammation is not always present in injuries to the shoulder tendons, this group of injuries are medically known as a rotator cuff tendinopathy or tendinopathies.