Webster's 1913 Dictionary
RICTUS
Ric "tus, n. Etym: [L., the aperture of the mouth. ]
Defn: The gape of the mouth, as of birds; -- often resricted to the corners of the mouth.
New American Oxford Dictionary
rictus
ric tus |ˈriktəs ˈrɪktəs | ▶noun a fixed grimace or grin: Ned's smile had become a rictus of repulsion. DERIVATIVES ric tal |ˈriktəl |adjective ORIGIN early 19th cent.: from Latin, literally ‘open mouth, ’ from rict- ‘gaped, ’ from the verb ringi.
Oxford Dictionary
rictus
rictus |ˈrɪktəs | ▶noun a fixed grimace or grin: their faces were each frozen in a terrified rictus. DERIVATIVES rictal adjective ORIGIN early 19th cent.: from Latin, literally ‘open mouth ’, from rict- ‘gaped ’, from the verb ringi.
French Dictionary
rictus
rictus n. m. nom masculin Grimace sarcastique. : Un rictus désagréable. Prononciation Le s se prononce, [riktys ]; le nom rime avec cactus
Spanish Dictionary
rictus
rictus nombre masculino 1 Contracción de los labios que deja al descubierto los dientes y da a la boca un aspecto parecido al de una sonrisa forzada .2 Gesto del rostro que expresa un sentimiento desagradable o un estado de ánimo doloroso :la obra terminaba con un rictus de tristeza en la cara del protagonista .El plural es rictus .
The Wordsmith Dictionary