inrush

noun

1. A crowding or flooding in.

   “As we swung around, the full force of the current caught us and drove the stern against the rocks; there was a thud which sent a tremor through the whole craft, and then a moment of nasty grinding as the steel hull scraped the rock wall. I expected momentarily the inrush of waters that would seal our doom; but presently from below came the welcome word that all was well.”

   “We found Pop Glossop in his pantry polishing silver, and put in our order. He seemed a little surprised at the inrush of such a multitude, but on learning that our tongues were hanging out obliged with a bottle of the best […]”

2. The initial flow of electricity into a component when it is switched on.

verb

1. (obsolete)To rush in.

   “The Ocean, ready to inrush upon them.”