combining form made up from Gr. σύν with + ὀστέον bone, and intended (or alleged) to mean ‘articulation of bones, joint,’ in several words instanced only from mod. Dicts.: see quots.
1844. Dunglison, Med. Lex. (1848), Synosteography..., the part of anatomy which describes the joints. Synosteology..., a treatise on the joints…. Synosteotomy..., dissection of the joints.
1891. Cent. Dict., Synosteotome, in surg., a dismembering-knife.
