If one of these spent shells is in the chamber, racking the slide will, in a single fluid motion, eject the old shell out the side of the gun and push a fresh round into the chamber.

NEWYORKER: A Loaded Gun

Instead of tapping out letters or writing a word on screen, you trace each letter in a single, fluid stroke.

BBC: The software is based on pattern recognition

Rather, the rapid rise of mobile shopping and location-based services have set the stage for a new kind of shopping experience, one that blends online, in-store and mobile into a single, fluid system that finally allows consumers to get what they want, for the price they want, when they want it.

FORBES: How The Web And Smart Phones Are Saving Offline Retailers