1. a gap or space between two teeth, especially the upper front teeth
Usage: medical/dental term; commonly used in orthodontics

Examples

• The child had a noticeable diastema between her two front teeth.
• Some people choose to close a diastema with braces or cosmetic dentistry.
• A diastema is often considered a normal variation in tooth spacing.
• The orthodontist explained that the diastema would close as the permanent teeth came in.
• In some cultures, a diastema is seen as a sign of beauty or good luck.