旋踵 Traditional form: 旋踵 Pinyin (reading): xuánzhǒng Definitions: (literary) in an instant (lit. to turn on one's heel) Characters: 旋 - to revolve, to orbit, to return 踵 - heel; to follow; to visit, to call on Traditional characters: 旋 - to revolve, to orbit, to return 踵 - heel; to follow; to visit, to call on