Ligation means joining or fastening of two things together with a special type of bond, often referring to the binding of DNA fragments in molecular biology. Full definition
The 4,000 Sisters of Mercy (who operate the second - largest hospital system in the U.S., after the Veterans Administration) were ordered, under threat of ecclesiastical penalties, to abandon their plan to permit tubal ligations in their hospitals. (religion-online.org)
Complete surgical ligation of the shunt has an excellent prognosis. (lowchensaustralia.com)
With partial shunt ligation, clinical improvement is usually noted after surgery, but relapse of clinical signs is common. (svsvet.com)