zo'na, pi. zorne

[L. girdle.] i. zone; any encircling or belt-like structure. 2. Herpes zoster. z. arcua'ta, arcuate zone, the inner portion of the membrana basilar is of the cochlea, underlying the organ of Corti. i. cart i lag in'ea, crista spiral is. z. cilia'ris, the ring of the ciliary proce es, z. cor'nu commis sur a'lis the ventral field of the posterior column of the spinal cord containing the endogenic fibers, z. denticula'ta, the row of proce es above the crista spiral is of the cochlea. z. derm at'ica, a ridge of thickened skin surrounding the protrusion in spina bifid a. ' z. epithe"liosero'sa, the membranous ring, within the z. dermatic a, surrounding the protrusion in spina bifid a. ^. fascicula'ta, the layer of elongated spaces in the cortical portion of the suprarenal gland, between the z. glomerulosa and z. reticular is, z. ganglion a'ris, the ganglionic