(n)the irregularly shaped area on either side of the cranium where the frontal bone and the anterior tip of the parietal bone and the temporal bone and the greater wing of the sphenoid bone meet; corresponds to the pterion when bones have ossified, Syn.sphenoidal fontanelle, sphenoidal fontanel, sphenoid fontanel
The Collaborative International Dictionary of English (GCIDE) v.0.53Collaborative International Dictionary (GCIDE)
[せんもん, senmon](n) (1) soft spot (in the skull of an infant); fontanelle; fontanel; (2) (See 黄泉) gates of Hades; entrance to the underworld[Add to Longdo]