incalculably small

So, for instance, covering up the right-hand side of our example (as in Figure 20.2(a)), we see that the rhombicuboctahedron does indeed have three types of face: two four-sided ones and one three-sided one.

The Altay Mountains to the north prevent rain clouds from reaching the Gurbantünggüt Desert, which fills the center of the Junggar Basin in China's northwest corner.

My mother clucked her tongue in disapproval.