nanosheetEnglishOxford New American Dictionarynanosheet /ˈnanōˌSHēt, ˈnænoʊˌʃit / ▸ noun a sheet of material with a thickness of 1 to 100 nanometers, of which graphene is a typical example: the result is a transparent, conductive carbon nanosheet which the team claims is as effective as graphene.