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.
And indeed its central meaning, at least, is clear enough. Deriving from the Latin littera, âa letter of the alphabet,â literature is first and foremost humankindâs entire body of writing; after that it is the body of writing belonging to a given language or people; then it is individual pieces of writing.