| Answer | Crossword Clue |
|---|---|
| basicranial | of or relating to the base of the skull |
| sphenoid | of or pertaining to the compound bone of the base of the skull, at the roof of the pharynx |
| basilary | pertaining to or situated at the base, esp. the base of the skull |
| basilar | pertaining to or situated at the base, esp. the base of the skull |
| pterygoid | of, relating to, or lying in the region of the inferior part of the sphenoid bone of the vertebrate skull |
| octal | of, relating to, or being a number system with a base of eight |
