[ 'və:tjʊəl ]
■ adjective
1》 almost or nearly as described, but not completely or according to strict definition.
2》 Computing not physically existing as such but made by software to appear to do so.
3》 Optics relating to the points at which rays would meet if produced backwards.
4》 Mechanics relating to or denoting infinitesimal displacements of a point in a system.
Derivatives
~ity -jʊ'alɪti noun
Origin
ME (also in the sense 'possessing certain virtues'): from med. L. ~is , from L. virtus 'virtue'.