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n. The sphenoid bone.

adj. Wedge-shaped.

adj. Of or relating to the sphenoid bone.

adj. Wedge-shaped.

n. The sphenoid bone.

n. A wedge-shaped crystal bounded by four equal isosceles triangles; the hemihedral form of a square pyramid.

adj. Wedge-shaped.

adj. Of or pertaining to the sphenoid bone.

n. A wedge-shaped crystal bounded by four equal isosceles triangles. It is the hemihedral form of a square pyramid.

n. The sphenoid bone.

Wedge-shaped; wedge-like: specifically, in anatomy, noting certain cranial bones. See II., 2.

n. In crystallography, a wedge-shaped crystalline form contained under four equal isosceles triangles. It is the hemihedral form of the square pyramid of the tetragonal system.

n. In anatomy, a large and important compound bone of the skull: so called from its shape and connections in man.

n. By some authors the term is limited to a form having two faces only, which meet in a wedge-shaped edge. The combination of two complementary forms of this type is then called a bisphenoid. A tetragonal scalenohedron, a form having eight similar triangular faces arranged in symmetrical pairs, has been called a disphenoid.

n. In anthropology, a cranium the norma verticalis of which has a wedge-shaped form, the forehead being narrow and the greatest width being near the occiput.

n. butterfly-shaped bone at the base of the skull

"The orbital plate and that part of the sphenoid which is found in the temporal fossa, as well as the lateral pterygoid plate, are ossified in membrane (Fawcett) 34."

os    bone   

minimum sphenoid diameter   

sphenoidal   

wedge-shaped   

ethmoid    well-gnawed    aitch    fibu-lar    sesamoid    innominate    trembly    turbinate    hyoid    maxillary