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.
WHAT YOU NEED TO KNOW: A muscle strain is a twist, pull, or tear of a muscle or tendon. A tendon is a strong elastic tissue that connects a muscle to a bone. Stretching a muscle too much may cause a muscle strain. A strain may also happen when a muscle is used too much without rest.