Do you mean "Ackerman"? More commonly referred to as "toe out on turns"...

This angle is built into the steering system through the design of the arms
on the steering knuckle and is non-adjustable (though, sometimes, things get
bent - but that's a different story).

As we drive through a corner, the inside tire follows a much smaller circle
than the outside tire. This means that the inside tire needs to turn
"tighter" than the outside tire to avoid scrubbing.

I did some googling for you and came up with a pretty clear pic of what's
happening at
http://www.nationaltbucketalliance.com/tech_info/chassis/ackerman/Ackerman.asp

HTH

Don't know where you live but, in my country, it is customary to thank
someone when they help you...