Lenght without Breadth

In two dimensions, two different lines can either be parallel, meaning they never meet, or may intersect at one and only one point. In three or more dimensions, lines may also be skew, meaning they don't meet, but also don't define a plane. Two distinct planes intersect in at most one line.While Euclid did define a line as "length without breadth" , he did not use this rather obscure definition in his later development.______________________ < Lenght without breadth * *