I. līˈgāshən noun
( -s )
Etymology: Middle French, from Late Latin ligation-, ligatio, from Latin ligatus + -ion-, -io -ion
1. : the action of binding ; specifically : the surgical process of tying up a blood vessel
2. : something that binds : connection , ligature
II. noun
: the process of joining together by a chemical process especially to form a chain (as of DNA or protein)