opposability
(əpəʊzəˈbɪlɪtɪ)
[f. next + -ity.]
The quality of being opposable.
| 1863 Huxley Man's Place Nat. ii. 86 The great toe,..in uncivilized and barefooted people,..retains a great amount of mobility, and even some sort of opposability. 1882 A. R. Wallace in Contemp. Rev. Mar. 430 The large size and complete opposability of the thumb. |