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.
Literature is important for many reasons, including its ability to provide pleasure to readers, to help build experience, to help readers empathize with others and to develop thinking skills. While literature's educational importance is often downplayed in favor of business and technical education, the study of books offers many positive benefits to readers.