Instantaneously

When the input exceeds a certain threshold, an output signal is instantaneously released.

Tom died almost instantaneously.

Dorothea darted instantaneously from the window; Will followed her, seizing her hand with a spasmodic movement; and so they stood, with their hands clasped, like two children, looking out on the storm, while the thunder gave a tremendous crack and roll above them, and the rain began to pour down.

Our home internet connections these days allow high-definition videos, shows, and content to reach our screens almost instantaneously.

If a thermonuclear bomb hit that base, we'd be vaporized instantaneously.

Hailstones are formed when raindrops are carried upward by thunderstorm updrafts into extremely cold areas of the atmosphere and freeze. Hailstones then grow by colliding with liquid water drops that freeze onto the hailstone’s surface. If the water freezes instantaneously when colliding with the hailstone, cloudy ice will form as air bubbles will be trapped in the newly formed ice. However, if the water freezes slowly, the air bubbles can escape and the new ice will be clear. The hail falls when the thunderstorm’s updraft can no longer support the weight of the hailstone, which can occur if the stone becomes large enough or the updraft weakens.

How quick the eye and hand to catch him [the ruffed grouse] when he rises from the underbrush and is out of sight in the wood before the untrained sportsman stops him with what is little more than a snapshot, so instantaneously must all be done!

Under the guise of being “online” and capable of disseminating news instantaneously (known colloquially as “retweeting”), being active on Twitter, for media workers, gives the effect of fulfilling one’s occupational duty as well as all the parts of professional upkeep that, in the physical world, involve being in the right rooms, overhearing the right things, and more or less maintaining appearances.