[lɪˈɡeɪʃn], (Noun)

Definitions:
- the surgical procedure of tying a ligature tightly around a blood vessel or other duct or tube in the body
(e.g: the ligation of the cystic duct)

- the joining of two DNA strands or other molecules by a phosphate ester linkage


Phrases:

Origin:
late Middle English: from late Latin ligatio(n-), from the verb ligare (see ligate)