1. relating to or involving reflection of light, sound, or other waves
2. relating to or characterized by geometric reflection or symmetry
Usage: mathematics; geometry

Examples

• The reflectional properties of the mirror made it perfect for the telescope.
• Water has strong reflectional qualities that create beautiful surface images.
• The building’s reflectional symmetry was evident in its identical left and right sides.
• Students studied the reflectional transformations of geometric shapes.
• The reflectional coating on the window reduced glare significantly.
• Her artwork featured reflectional patterns that created optical illusions.