H. G. Muller wrote on Thu, Nov 20, 2008 08:10 PM UTC:
Going from one direction to another is only a single 'turn'. One could even argue if this turn would qualify as 'sharp', (which seems hardly fitting for a 135-degree angle), but that seems nitpicking. Nevertheless, the dictionary definition requires a first and a second turn.
The archetypal lightning bolt has at least two sharp turns in it. With only one turn, no one would recognize it as a lightning bolt; people would see it as a letter V or an arrow head.
It seems you are pretty much trying to argue that 1 equals 2 here...