Is there a common term for types such as size_t, ptrdiff_t and uintmax_t?

I need a widely accepted term that would describe size_t, ptrdiff_t, intptr_t, uintptr_t, uintmax_t, etc (so platform-dependent types which are mentioned in the Standard and having width varying depending on pointer size or widest integer width size) together as a set of types.

Obviously "memsize types" or "pointer size types" won't work because intmax_t is not tied to pointer size or memory block size.

Is there a widely accepted name for such set of types?