It looks like an arrow pointing downward with horizontal lines. ^^I don't know what that means above but sounds like he is trying to describe the symbol for ground on a schematic. To answer the...
Electronic SymbolsResistorsCapacitorsDiodesFusesGround or GNDInductor or CoilLampMetersOperational Amplifier or Op-AmpOscillator CrystalSilicon Controlled Rectifier or SCRSwitchIron Core...