adjective
Definition: Relating to a small, sword-like structure at the lower end of the breastbone or shaped like a sword.
Example: The xiphoid process is an important landmark in anatomy.
noun
Definition: A small, cartilaginous extension at the lower end of the sternum, which can be felt as a pointed structure in the chest.
Example: The doctor explained that the xiphoid is an important landmark for certain medical procedures.