Sorry, the term riser is not in the dictionary. Check the spelling and try removing suffixes like "-ing" and "-s".
Why is this definition missing?
Nearby terms:
RiscPC ♦ RISC System/6000 ♦ Risk Based Testing ♦ RISQL ♦ RITL ♦ RJ-11
Try this search on Wikipedia, Wiktionary, Google, OneLook.
Loading