Ligation

Ligation may refer to:


 * The act of making a ligature (tie). In medicine, a ligature is a device, similar to a tourniquet, usually of thread or string, tied around a limb, blood vessel or similar to restrict blood flow. A ligature can be used for tumor strangulation, carried out before removal.
 * Chemical ligation, the process of producing peptides from amino acids
 * The DNA-ligating action of DNA ligase
 * Tubal ligation, a method of female sterilization