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.
Tendonitis in the hand occurs because the tendon tissues become inflamed. The inflammation can be the result of repetitive strain or trauma. However, repetitive strain, such as long hours of typing and playing golf, is the primary cause of tendonitis today.