nanocomposite

https://dx.doi.org/10.1351/goldbook.NT07243
Composite in which at least one of the phase domains has at least one dimension of the order of nanometres.
Source:
PAC, 2007, 79, 1801 (Definitions of terms relating to the structure and processing of sols, gels, networks, and inorganic-organic hybrid materials (IUPAC Recommendations 2007)) on page 1813