n.
Pronunciation: ek- ' stir- ē - ə r
Function: adjective
Etymology: Latin, comparative of exter, exterus being on the outside, foreign, from ex
Date: 1528
1 : being on an outside surface : situated on the outside
2 : observable by outward signs <his exterior quietness is belied by an occasional nervous twitch ― Current Biog. >
3 : suitable for use on outside surfaces
– ex · te · ri · or · ly adverb