Sphenoid
Encyclopedia
Sphenoid may refer to:
  • In anatomy, the sphenoid bone
    Sphenoid bone
    The sphenoid bone is an unpaired bone situated at the base of the skull in front of the temporal bone and basilar part of the occipital bone.The sphenoid bone is one of the seven bones that articulate to form the orbit...

  • In geometry, a tetrahedron
    Tetrahedron
    In geometry, a tetrahedron is a polyhedron composed of four triangular faces, three of which meet at each vertex. A regular tetrahedron is one in which the four triangles are regular, or "equilateral", and is one of the Platonic solids...

    with mirror symmetry
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