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.
1. Repetitive Strain on the Tendon. Repetitive strain is the most common cause of tendonitis. This is when the same motion is performed over and over again, often with force added. Athletes and musicians are prone to tendonitis from their rigorous practice schedules and the repetitive movements required.