Wordnet 3.0
NOUN (1)
1. 
 (computer science) memory created by using the hard disk to simulate additional random-access memory; 
 the addressable storage space available to the user of a computer system in which virtual addresses are mapped into real addresses; 
[syn: virtual memory, virtual storage]
WordNet (r) 3.0 (2006):
virtual storage
    n 1: (computer science) memory created by using the hard disk to
         simulate additional random-access memory; the addressable
         storage space available to the user of a computer system in
         which virtual addresses are mapped into real addresses
         [syn: virtual memory, virtual storage]