M3E1T1A1M3A1T1E1R1I1A1L1S1
17 points
METAMATERIALS is no goodvalid
Not a playable Scrabble word in NWL2023.
METAMATERIAL, any artificial material created from microscopic arrangements of existing elements in a structure which gives the material unconventional properties, esp. when used for cloaking light or sound waves [n]