1. pertaining to, situated in, or forming small or narrow spaces or intervals between things or parts.
2. Anatomy. situated between the cells of a structure or part: interstitial tissue.
1. Crystallography. an imperfection in a crystal caused by the presence of an extra atom in an otherwise complete lattice.
Philosophy should never have been purified. Rather than being seen as a problem, “dirty hands” should have been understood as the native condition of philosophic thought–present everywhere, often interstitial, essentially interdisciplinary and transdisciplinary in nature. Philosophy is a mangle. The philosopher’s hands were never clean and were never meant to be. – Robert Frodeman and Adam Briggle, “When Philosophy Lost Its Way,” New York Times, January 11, 2016
We are come to a world within the world. In these alien reaches, these maugre sinks and interstitial wastes that the righteous see from carriage and car another life dreams. – Cormac McCarthy, Suttree, 1979
Interstitial derives from the Latin interstitium meaning “interstice” or “an intervening space.” It entered English in the mid-1600s.