ligation

noun5

1. •
   The act of tying, of applying a ligature.
2. •
   The state of having a ligature, of being tied.
3. •
   The act of tying off or sealing a blood vessel, fallopian tube, etc during surgery; act of ligating.
4. •
   Something that ties, a ligature.
5. •
   The formation of a complex by reaction with a ligand.