1. Of or relating to or having the relation of an isotope

See also: isotope

Encyclopedia: Isotopic

• xerox
• xerox copy
• Xerox machine
• Xerxes
• Xerxes I
• Xerxes II
• Xerxes the Great
• Xestobium rufovillosum
• Xhosa
• xi
• Xian
• xii
• xiii
• Ximenesia encelioides
• Xinjiang
• Xinjiang Uighur Autonomous Region
• Xiphias
• Xiphias gladius
• Xiphiidae
• xiphisternum
• xiphium iris
• xiphoid
• xiphoid process
• Xiphosura
• Xiphosurus polyphemus