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

• lungwort
• lungyi
• lunisolar
• lunisolar calendar
• lunitidal interval
• lunk
• lunkhead
• Lunt
• lunula
• lunule
• Luo
• Luoyang
• Lupercalia
• lupin
• lupine
• Lupinus
• Lupinus albus
• Lupinus arboreus
• Lupinus luteus
• Lupinus perennis
• Lupinus subcarnosus
• Lupinus texensis
• lupus
• lupus erythematosus
• lupus vulgaris