lunule (noun)

1. During the ceremony, the priest blessed the congregation by touching the lunule of each person's finger.

2. In ancient Rome, women used to paint the lunule of their nails with different colors to symbolize their social status.

3. The latest nail trend includes adorning the lunule with small glittery stickers for a glamorous look.

4. The architect incorporated a unique design element by creating curved lunule-shaped windows in the facade of the building.