Covering is a related term of encasement.
As nouns the difference between covering and encasement
is that covering is (countable) that which covers something while encasement is the act of encasing or something that encases.
As a verb covering
is .
covering
English
Noun
(countable) That which covers something.
(uncountable) Action of the verb to cover .
Verb
(head)
encasement
English
Noun
(
en noun)
The act of encasing or something that encases
(genetics) The early genetic theory,