Before revision: In materials science, asperity, defined as "unevenness of surface, roughness, ruggedness" ( OED, from the Latin asper—"rough"), has implications (for example) in physics and seismology.
After revision: In materials science, asperity, defined as "unevenness of surface, roughness, ruggedness" ( from the Latin asper—"rough"), has implications (for example) in physics and seismology.