quasicrystal
[ kwey-zahy-kris-tl, kwey-sahy‐, kwah-see‐, ‐zee‐ ]
/ ˌkweɪ zaɪˈkrɪs tl, ˌkweɪ saɪ‐, ˌkwɑ si‐, ‐zi‐ /
noun
a form of solid matter whose atoms are arranged like those of a crystal but assume patterns that do not exactly repeat themselves.
Origin of quasicrystal
First recorded in 1985–90