| presphenoid | <anatomy> Situated in front of the sphenoid bone; of or pertaining to the anterior part of the sphenoid bone (i. E, the presphenoid bone). Presphenoid bone, the anterior part of the body of the sphenoid bone in front of the basisphenoid. It is usually a separate bone in the young or foetus, but becomes a part of the sphenoid in the adult. (05 Mar 1998) |
|---|---|
| presphenoid bone | In comparative anatomy, the bone in the floor of the braincase anterior to the basisphenoid bone. (05 Mar 2000) |
| presphenoidal | <anatomy> Of or pertaining to the presphenoid bone. (05 Mar 1998) |