hyperrectangletyyppisen
Hyperrectangletyyppisen is a term that appears to be a neologism or a portmanteau, likely related to the concept of hyperrectangles in mathematics and potentially combined with a descriptor of being "typical" or "representative" in some sense. A hyperrectangle, also known as a box or a cuboid in higher dimensions, is a generalization of a rectangle or cube to more than three dimensions. In mathematics, a hyperrectangle is defined by a set of lower and upper bounds for each of its dimensions. For example, in two dimensions, a hyperrectangle is a standard rectangle defined by [x_min, x_max] x [y_min, y_max]. In three dimensions, it's a rectangular prism defined by [x_min, x_max] x [y_min, y_max] x [z_min, z_max].
The addition of "tyypillisen" (which translates from Finnish to "typical" or "characteristic") suggests that the term