rictus /rikˈtəs/ (zoology)

1. The gape, esp of a bird
2. The chink or aperture of a lipped corolla
3. Unnatural gaping of the mouth, eg in horror

ricˈtal adjective

1. Of the gape
2. At the corners of the mouth

• slenderise
• slenderised
• slenderises
• slenderising
• slenderize
• slenderized
• slenderizes
• slenderizing
• slender loris
• slenderly
• slenderness
• slendernesses
• slenter
• slept
• sleuth
• sleuthed
• sleuth-hound
• sleuth-hounds
• sleuthing
• sleuths
• slew
• slewed
• slewing
• slew rate
• slew rates