virtual

vir*tu*al

adjective

{bc}being such in essence or effect though not formally recognized or admitted

virtual colonoscopy

noun

{bc}{sx|colonography||}

virtual image

noun

{bc}an image (such as one seen in a plane mirror) formed of points from which divergent rays (as of light) seem to emanate without actually doing so

virtual memory

noun

{bc}a section of a hard drive that can be used as if it were an extension of a computeru0027s random-access memory

virtual private network

noun

{bc}a private computer network that functions over a public network (such as the Internet) and usually utilizes data {d_link|encryption|encryption} to provide secure access to something (such as an internal business server or private network)

virtual reality

noun

{bc}an artificial environment which is experienced through sensory stimuli (such as sights and sounds) provided by a computer and in which oneu0027s actions partially determine what happens in the environment