0 an expression in which someone shows their teeth in a smile, but looks strange or in pain rather than looking happy and relaxed:
Here huge animated dinosaurs wallow in gore, as jaws slobber and teeth grin in reptilian rictus.
Suspended over all is a gigantic globe with a face broken into a great rictus, jagged with six long, sharp teeth.
Though gory enough, its blood-spattered mouth drawn into a rictus, the head is also beautiful enough to compel the gaze of everyone - more exactly, every man - who sees it.
His mouth is pulled into a sharp-toothed rictus.
His mouth is pulled into a rictus.
