sphenoidal

As an adjective sphenoidal is

(anatomy) sphenoid.

As adjectives the difference between sphenoidal and spheroidal

is that sphenoidal is (anatomy) sphenoid while spheroidal is spheroidal.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective sphenoidal is

(anatomy) sphenoid.

In anatomy terms the difference between sphenoidal and suprasphenoidal

is that sphenoidal is sphenoid while suprasphenoidal is situated above the sphenoidal bone.

As a noun wedge

is one of the simple machines; a piece of material, such as metal or wood, thick at one edge and tapered to a thin edge at the other for insertion in a narrow crevice, used for splitting, tightening, securing, or levering () or wedge can be (uk|cambridge university|slang) the person whose name stands lowest on the list of the classical tripos.

As a verb wedge

is to support or secure using a wedge.

As an adjective sphenoidal is

(anatomy) sphenoid.