surge

n. १ (as, a swelling, rolling or sweeping forward like that of an oncoming billow; as, an onward rush) उल्लोल (पु.) २ Meteor. (a barometric wave apparently independent of and unexplained by existing barometric gradients) उल्लोल (पु.) ३ Elec. Eng. (a transient variation of current in an electrical circuit; sudden rise and fall of voltage) उल्लोल (पु.)