1. Outer; external: the exterior door.
2. Originating or acting from the outside: exterior influences on the negotiations.
3. Suitable for use outside: an exterior paint.
1. A part or a surface that is outside: the exterior of the house.
2. An external or outward appearance: a friendly exterior.
a. A representation of the outdoors for use on a soundstage or in a theater: The artist painted exteriors for the film.
b. A scene for a movie or television program that is filmed outdoors: The exteriors for the film were shot in the mountains of New Zealand.
[Latin, comparative of exter, outward; see eghs in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.