the GNU version of the Collaborative International Dictionary of English
n. Surface; superficies; externality.
The Century Dictionary and Cyclopedia
n. The character or fact of being exterior; superficiality; externality.
n. Something exterior or external; an outward circumstance.
n. Exteriorization; externalization; the mental reference of sense-processes to objects in the external world.
Word Usage
"Considering pure exteriority entails misplacing these proper relations between inside the metaphor and outside, as well as confusing what is proper within the social system and what belongs outside it."