synostosis

[ sin-o-stoh-sis ]

noun

, Anatomy.

, plural syn·os·to·ses [sin-o-, stoh, -seez].

1. union of separate bones into a single bone.

Other Words From

• syn·os·tot·ic [sin-o-, stot, -ik], synos·toti·cal adjective
• synos·toti·cal·ly adverb

Word History and Origins

Origin of synostosis¹

From New Latin, dating back to 1840–50; syn-, ostosis

Example Sentences

Archie's condition - known as Sagittal Synostosis - means that as his brain grows, the skull cannot grow sideways to accommodate it.

From BBC

Aist was born with congenital radioulnar synostosis, a condition leading to the abnormal connection of the bones in the forearm, the radius and ulna, according to the National Institutes of Health.

From Washington Times

Matthew was born with a rare cranial birth defect called metopic synostosis, a condition that affects one in 15,000 babies, according to data from Boston Children’s Hospital.

From Washington Times

His metopic synostosis caused a premature hardening of his cranial sutures, the joints between the seven cranial bones.

From Washington Times

Metopic synostosis is a type of craniosynostosis, a deformity found in infants that changes the growth pattern in their skull.

From Washington Times