Meaning of EXTERIOR in English

I. ex ‧ te ‧ ri ‧ or 1 /ɪkˈstɪəriə $ -ˈtɪriər/ BrE AmE noun [countable]

1 . [usually singular] the outside of something, especially a building OPP interior

exterior of

the exterior of the factory

The dome is tiled on the exterior.

2 . calm/cool etc exterior behaviour that seems calm, unfriendly etc but which often hides a different feeling or attitude:

Beneath that calm exterior, he has a fierce will to win.

II. exterior 2 BrE AmE adjective [usually before noun]

[ Date: 1500-1600 ; Language: Latin ; Origin: 'more outward' , from exter ; ⇨ ↑ external ]

1 . on the outside of something OPP interior :

The exterior walls need a new coat of paint.

2 . exterior scenes in a film are filmed outdoors

3 . coming from or relating to facts, situations etc other than the one you are considering:

information that is exterior to the text itself

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.