1. (aka "electrics groundrow") A group of cyc or strip lights that sits on the stage floor used to light a cyclorama or drop. The units are laid end to end to create a big row with all instruments focused up at the cyc or drop. 2. (aka "scenic groundrow") A low two-dimensional scenic unit, sometimes with the top profiled, used to mask the bottom of an upstage cyc or backdrop and any lighting fixtures behind.