1. Thrown in between other words or phrases; parenthetical; ejaculatory; as, an interjectional remark 
2. Pertaining to, or having the nature of, an interjection; consisting of natural and spontaneous exclamations

Encyclopedia: Interjectional

• curtailment
• curtain
• curtain call
• curtain lecture
• curtain off
• curtain raiser
• curtain raising
• curtain ring
• curtained
• curtainless
• curtal
• curtesy
• curtilage
• Curtis
• Curtisia
• Curtiss
• curtly
• curtness
• curtsey
• curtsy
• curule
• curvaceous
• curvaceously
• curvaceousness
• curvaton