triatomic /trī-ə-tomˈik/

1. Consisting of three atoms
2. Having three replaceable atoms or groups
3. Trivalent

• isenergic
• Isengrim
• isentropic
• -ish
• ish
• ishes
• Ishmael
• Ishmaelite
• Ishmaelitish
• I should be so lucky
• I should cocoa
• I should worry
• Ishtar
• Isiac
• Isiacal
• Isidorian
• isinglass
• isinglasses
• ISIS
• Isis
• Isl.
• Islam
• Islamic
• Islamicisation
• Islamicise