tetanus definition
Tetanus, also known as lockjaw, is an infection characterized by muscle spasms.In the most common type the spasms begin in the jaw and then progress to the rest of the body. These spasms usually last a few minutes each time and occur frequently for three to four weeks.etanus is caused by an infection with the bacterium Clostridium tetani, which is commonly found in soil, dust and manure.