unpaired bone situated at the front middle of the skull in front of the temporal bone and basilar part of the occipital bone
|Anatomical terms of bone|
- According to most dictionaries, the word sphenoid (// derives from Greek sphenoeides, "wedgelike". Thieme Atlas of Anatomy disagrees and says that the sphenoid bone was originally called os sphecoidale, meaning "bone resembling a wasp", and that the word was later written 'sphenoidale' by a transcription error. An anterior view of the bone resembles more the body of a wasp or a bat with wings than a wedge.