•
Discharge (hydrology), the amount of water flowing through the channel •
Effluent released into a river or sea •
Groundwater discharge, the volumetric flow rate of groundwater through an aquifer •
Discharging method (discrete mathematics) is a proof technique in discrete mathematics •
Electric discharge: •
Corona discharge, a type of electric current •
Glow discharge, a plasma •
Discharger, an electrical device that releases stored energy •
Battery discharging •
Static discharger, a device used on airplanes to maintain use of electrical equipment •
Electrostatic discharge, sudden and momentary electric current flows between two objects •
Dielectric barrier discharge, the electrical discharge between two electrodes separated by an insulating dielectric barrier •
Gas-discharge lamp, a light bulb that includes a discharge gas •
Partial discharge, a temporary breakdown of electrical insulation ==Government and law==