It is known that **A δ-hyperbolic space is a *geodesic* metric space in which every geodesic triangle is δ-thin**. (http://en.wikipedia.org/wiki/%CE%94-hyperbolic_space) The question is that if we remove the word "geodesic" from the above definition, is it still acceptable? Or does the sentence **a δ-hyperbolic space is a metric space in which every geodesic triangle is δ-thin** still make sense? Many thanks!