Sphenoid

[sphe·noid]

Butterfly shaped bone at the base of the skull

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Wedge-shaped; as, a sphenoid crystal.

Noun
butterfly-shaped bone at the base of the skull

a.
Wedge-shaped; as, a sphenoid crystal.

a.
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.

Sphenoid

Sphe"noid , a. [Gr. ; a wedge + form: cf. F. sph'82no'8bde.] 1. Wedge-shaped; as, a sphenoid crystal. 2. (Anat.) Of or pertaining to the sphenoid bone. Sphenoid bone (Anat.), an irregularly shaped bone in front of the occipital in the base of the skull of the higher vertebrates. It is composed of several fetal bones which become united the adult. See Alisphenoid, Basisphenoid, Orbitosphenoid, Presphenoid.

Sphenoid

Sphe"noid , n. 1. (Crystallog.) A wedge-shaped crystal bounded by four equal isosceles triangles. It is the hemihedral form of a square pyramid. 2. (Anat.) The sphenoid bone.

Wedge-shaped; as, a sphenoid crystal.

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

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