nanoporeEnglishOxford Dictionary of Englishnanopore /ˈnanə(ʊ)pɔː / ▸ noun a pore or cavity with dimensions of only a few nanometres: the silica layers had created a vast warren of nanopores, forming a sponge that soaked up any surface water instantly. – DERIVATIVES nanoporous /ˈnanə(ʊ)ˌpɔːrəs/ adjective