xiphium iris
— Noun
– English
~ bulbous iris of western Mediterranean region having usually violet-purple flowers
xiphoid process
— Noun
– English
~ smallest of the three parts of the breastbone; articulates with the corpus sternum and the seventh rib
Xiphosura
— Noun
– English
~ horseshoe crabs and extinct forms
Xiphosurus polyphemus
— Noun
– English
~ large marine arthropod of the Atlantic coast of North America having a domed carapace that is shaped like a horseshoe and a stiff pointed tail; a living fossil related to the wood louse