An electrode array for a tissue-stimulating prosthesis, such as a cochlear implant. The electrode array is comprised of a plurality of electrodes (41), wherein at least one electrode of the array is comprised of at least two electrically connected portions (41a,41b) that are adjustable in orientation relative to each other. This adjustability in orientation preferably allows the array to adopt a tighter curvature than would be the case were the electrode portions not relatively adjustable to each other.