virtualizer

noun
UK /ˈvɜːtʃuəlaɪzə/
US /ˈvɜːrtʃuəlaɪzər/

A virtualizer is a tool that makes a computer pretend to be another computer.

The virtualizer let me run two different operating systems on my laptop at the same time.


OTHER MEANINGS

2. A piece of software that creates a virtual version of a device or resource, such as a storage drive or network.

The storage virtualizer combined several hard drives into one large pool.

3. In fitness technology, a device or app that simulates a race or route on a treadmill or bike.

The virtualizer showed a mountain trail on the screen while I ran indoors.

4. A person or thing that makes something seem real or effective without actually being so.

The marketing team acted as a virtualizer, making the small startup look much bigger.