An immovable joint (especially between the bones of the skull)(noun)
WordNet. Princeton University. 2010.
Use "sutura" in a sentence
"The Absurd: The soft sutura is the quirk of the absurd."
"The soft sutura is an absurd incongruity in the text, something that “would not happen” in such a context."
"The sutura is a special case perhaps, because it runs the gamut from Pinteresque conversational/behavioural non sequiturs like in THE BIRTHDAY PARTY (where the disruption of conventional conversational logic is designed to force a re-evaluation of the system itself, a search for a truer logic of human interactions) to out-and-out breaches of causality like in BUFFET FROID."