Obs. rare. [irreg. ad. mod.L. symphysis: see prec.] Union or fusion of two bodies or parts of a body.
165587. H. More, App. Antid. Ath. (1712), 233. The Dæmon rather seems by temporaneous constriction to keep the parts together, than to join them by any permanent Symphysy. Ibid., 234. This would be so, if the Devil, by a true Symphysy, could co-unite the parts; but if he only holds them together, the parts of the body are no more coherent than a handful of sand.