‘EV’ is a recognised financial measure, short for Enterprise Value. It is calculated: EV = market cap – cash + debt.
It’s what you’d end up spending (in theory) to own the company and settle its books.
EV is more accurate than Market Cap. Often the two figures are similar.

This definition is as shown on Gold Nerds website
http://goldnerds.com.au/o/content/view/33/60/