The symmetry that a figure has if it can be made to fit exactly onto the original when it is translated a given distance at a given direction and then reflected over a line. As in translational symmetry, glide-reflectional symmetry exists only for infinite patterns.
literature noun [U] (WRITING). B1 written âartistic âworks, âespecially those with a high and âlasting âartistic âvalue: âclassical/âmodern literature Wuthering Heights is a âclassic of âEnglish literature. More examples. 1  He's very â knowledgeable about â German literature.
Old book bindings at a library. Literature is a group of works of art made up of words. Most are written, but some are passed on by word of mouth. Literature usually means works of poetry and prose that are especially well written. There are many different kinds of literature, such as poetry, plays, or novels.