1. a gap or missing part in a text, manuscript, or sequence of events
Usage: often used in academic or literary contexts
2. a small cavity, pit, or space in bone or tissue
Usage: anatomy, biology

Examples

• The historian noted a significant lacuna in the historical record between 1450 and 1480.
• There is a lacuna in our understanding of how the ancient civilization collapsed.
• The damaged manuscript contained several lacunae where pages had been lost.
• In bone tissue, lacunae are small spaces occupied by osteocytes.
• The author's argument had a notable lacuna that weakened her conclusion.
• Scholars have long debated the lacuna in Shakespeare's early biographical records.