v. [Back-formation from next.] pass. and intr. To be affected with synostosis; to be united by a growth of bone.
1878. Bartley, trans. Topinard’s Anthrop., iv. 133. The bones become anchylosed, the suture is synostosed.
1904. Duckworth, Stud. Anthropol. Laborat., 213. The sagittal suture shows no signs of synostosis, nor has the spheno-basilar suture yet synostosed. Ibid. (1904), Morphol. & Anthropol., x. 252. Premature synostosis is followed by restricted growth in a direction perpendicular to that of the synostosed suture.
