pres ‧ er ‧ va ‧ tion /ˌprezəˈveɪʃ ə n $ -zər-/ BrE AmE noun [uncountable]
1 . when something is kept in its original state or in good condition ⇨ preserve
preservation of
Eliot campaigned for the preservation of London’s churches.
We are working for the preservation of the environment.
the preservation of our cultural heritage
methods of food preservation
2 . the act of making sure that a situation continues without changing
preservation of
the preservation of peace in the region
3 . the degree to which something has remained unchanged or unharmed by weather, age etc:
The arena is in an exceptionally fine state of preservation.
⇨ ↑ self-preservation