If thats not good enough for you, heres a more solid explination from the same site
Scissor, aka lambo, vertical
The most well known of the different doors, our friends at Lamborghini have probably made this door the most well known of exotic doors. The name scissor comes from the way it comes straight down like a pair of hand scissors. Because Lamborghini knew that their door would be opening this way, they have the A-pillar out of the way, and the door comes straight down, just like the blade on your scissors. The pivot point is usually at the top corner of the door, near the A-pillar. It is assisted by a shock to raise the weight of the door.