metal or plastic structure a series of bars or slats that form an open grid pattern usually mounted in a wall or floor may have a locking mechanism can be used as a guard or filter for air and water
grate which has metal or plastic structure grate which is a series of bars or slats that form an open grid pattern grate which has usually mounted in a wall or floor grate which may have a locking mechanism grate which can be used as a guard or filter for air and water