[ sin-o-stoh-sis ]
/ ˌsɪn ɒˈstoʊ sɪs /

noun, plural syn·os·to·ses [sin-o-stoh-seez] /ˌsɪn ɒˈstoʊ siz/. Anatomy.

union of separate bones into a single bone.

Origin of synostosis

From New Latin, dating back to 1840–50; see origin at syn-, ostosis
Related formssyn·os·tot·ic [sin-o-stot-ik] /ˌsɪn ɒˈstɒt ɪk/, syn·os·tot·i·cal, adjectivesyn·os·tot·i·cal·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for synostoses


[ sĭn′ŏ-stōsĭs ]

n. pl. syn•os•to•ses (-sēz)

Fusion of normally separate bones.bony ankylosis true ankylosis
Related formssyn′os•totic (-tŏtĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.