/ ˈvɜːtʃuəli; NAmE ˈvɜːrtʃ-/ adverb
1.
almost or very nearly, so that any slight difference is not important :
to be virtually impossible
Virtually all students will be exempt from the tax.
He virtually admitted he was guilty.
This year's results are virtually the same as last year's.
2.
( computing ) by the use of computer software that makes sth appear to exist; using virtual reality technology