| Noun | 1. | parietal bone - either of two skull bones between the frontal and occipital bones and forming the top and sides of the craniumentomion - the craniometric point at the tip of the angular part of the parietal bone that articulates with the temporal bone sphenion - the anterior tip of the parietal bone membrane bone - any bone that develops within membranous tissue without previous cartilage formation; e.g. the clavicle and bones of the skull |