Externality
Pronunciation : Ex`ter*nal"i*ty
Part of Speech : n.
Definition : Defn: State of being external; exteriority; (Metaph.)
Defn: separation from the perceiving mind. Pressure or resistance necessarily supposes externality in the thing which presses or resists. A. Smith.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder