a type of wall obstacle in obstacle course racing with a curved bottom that is used as a ramp to run up, similar to a half-pipe or quarter-pipe, which then curves back over beyond vertical.

A grass of the species Hordeum murinum.

plural of adiabatic wall

plural of Berlin Wall

plural of cell-wall

plural of cosmic wall

plural of dead wall

plural of domain wall

plural of fly on the wall

plural of fourth wall