Ligation

n.	1.	The act of binding, or the state of being bound.
	2.	That which binds; bond; connection. Tied with tape, and sealed at each fold and ligation. - Sir W. Scott.

Noun

1.

ligation - (surgery) tying a duct or blood vessel with a ligature (as to prevent bleeding during surgery)

ligate, ligature, surgery, tubal ligation, tying