1. Resembling a wedge. The sphenoid bone, the pterygoid bone at the anterior part of the basis of the skull, and wedging the other cranial bones firmly together.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• sohecoid,
• sphecoide,
• specoid,
• spheoid,
• sphhecoid,
• sphecoida,
• sophenion,
• sphenon,
• sphenoin,
• aphenoid,
• sphemnoid,
• sphenoide,
• sphenod,
• spheniod,
• sphennoid,
• spienose,
• sferoid,
• scienoid,
• spardoid,
• sphrenotic

• spender,
• sphenodon,
• spend.

The adjective form of the word "sphenoid" is "sphenoidal".

The plural of the "sphenoid" can be the "sphenoids".

The singular of the "sphenoid" can be the "sphenoid".