synostosis

S1Y4N1O1S1T1O1S1I1S1
UK/ˌsɪnɒˈstəʊsɪs/US/ˌsɪnɑˈstoʊsɪs/

noun

The healthy fusion of adjacent bones by the growth of a bony material.

“normal human cranial synostosis”

Scrabble 13

Meanings

nounsynostosis (countable and uncountable, plural synostoses)

plural synostoses

  1. countableuncountablemedicineThe healthy fusion of adjacent bones by the growth of a bony material.

    normal human cranial synostosis

    1 more example

    Examples of normal human developmental synostosis occur in the mandible and in the sacrum.

  2. countableuncountablemedicineThe abnormal bony fusion of a joint.

    Various synostoses are typical of Antley-Bixler syndrome.

    1 more example

    Conditions such as those are known collectively as single suture synostosis.

    2009 January 25, Denis Campbell, “Kian, 4, needs a miracle. He's in the right place”, in The Observer

    Synonyms: synosteosis

Synonyms & antonyms

nounThe abnormal bony fusion of a joint.

Origin

From New Latin; by surface analysis, syn- + ost(eo)- + -osis.

Full word history & related roots →

Rhymes & wordplay

Rhymes with synostosis

All rhymes →
Cite this entry
APA

synostosis. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/synostosis

MLA

“synostosis.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/synostosis. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “synostosis,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/synostosis.

Source: synostosis on Wiktionary, CC BY-SA 4.0.