衍射格子 yǎnshègézi diffraction grating Origin Definitions Defs Strokes Stroke Words Sentences Sents 衍射 yǎnshè diffraction the process by which waves such as light or sound bend around an obstacle or spread through an opening; also called 绕射 ràoshè格子 gézi lattice a square frame; a grille; a booth or partitioned compartment