RISER
a person who habitually gets out of bed at a particular time of the morning
a vertical section between the treads of a staircase
a vertical pipe for the upward flow of liquid or gas
a low platform on a stage or in an auditorium, used to give greater prominence to a speaker or performer
a strip of webbing joining the harness and the rigging lines of a parachute or paraglider
a vertical section between the treads of a staircase
a vertical pipe for the upward flow of liquid or gas
a low platform on a stage or in an auditorium, used to give greater prominence to a speaker or performer
a strip of webbing joining the harness and the rigging lines of a parachute or paraglider