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, in its broadest sense, is any written work; etymologically the term derives from Latin litaritura/litteratura writing formed with letters, although some definitions include spoken or sung texts.iterary criticism implies a critique and evaluation of a piece of literature and, in some cases, it is used to improve a work in progress or a classical piece, as with an ongoing theatre production.