metamaterial

noun

Etymology: Etymology tree Proto-Indo-European *me Proto-Indo-European *meth₂? Ancient Greek μετᾰ́ (metắ) Ancient Greek μετᾰ- (metă-)lbor. English meta- English material English metamaterial From meta- + material.

1. Any material engineered to have a property that is rarely observed in naturally occurring materials; especially

   “This study paves the way for investigating complex contact-based dynamics of microgranular media, demonstrates a novel acoustic metamaterial, and yields a new approach to studying micro- to nanoscale contact mechanics in multiparticle networks..”

   “Planar metamaterials with subwavelength thickness, or metasurfaces, consisting of single-layer or few-layer stacks of planar structures, can be readily fabricated using lithography and nanoprinting methods, and the ultrathin thickness in the wave propagation direction can greatly suppress the undesirable losses.”

2. Any material engineered to have a property that is rarely observed in naturally occurring materials; especially: