1. a work of art (especially a painting) on three panels, typically hinged together side by side
2. a set of three associated artistic, literary, or musical works intended to be appreciated together

Examples

• The medieval triptych displayed scenes from the life of Christ across its three panels.
• The artist created a beautiful triptych showing the changing seasons.
• The museum’s most prized possession is a 15th-century religious triptych.
• Her photography triptych captured the urban landscape at dawn, noon, and dusk.
• The altarpiece was designed as a triptych with the central panel depicting the crucifixion.
• The novelist planned her work as a triptych exploring three generations of the same family.