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.
Tendinitis is also called tendonitis, tendinosis, tendonosis, or tendinopathy. There are numerous types of tendinitis that may be treated with laser therapy: 1  Rotator cuff tendinitis affects the tendons of the shoulder. 2  Tendinitis can affect the tendon that attaches the biceps muscle to the shoulder. 3  Tennis elbow or lateral epicondylitis is tendinitis of the outer tendons of the elbow.